• You are viewing the forum as a Guest, please login (you can use your Facebook, Twitter, Google or Microsoft account to login) or register using this link: Log in or Sign Up
  • You can now follow UKAPS on Instagram.

Search results

  1. dw1305

    Help Understanding Air Stones

    Hi all, Yes, that is the one. You get longer residence time with smaller bubbles as well. @christinecrites have a look at <"Aeration and oxygenation....">. I wrote it for specifically for <"L number keepers">, but it is relevant to nearly all fish keeping. cheers Darrel
  2. dw1305

    Help Understanding Air Stones

    Hi all, It is a bit of both really. I'd agree lower is better. The best of all is really an <"air-lift tube">. cheers Darrel
  3. dw1305

    New Filter for 60x40x40

    Hi all, All my filters are <"second hand Eheims">, bought via "Aquarists Classified" or Ebay, I've owned some of them for over 20 years. cheers Darrel
  4. dw1305

    No polishing filter ?

    Hi all, That is the difference, you are pretty conscientious filter cleaner, while I have a <"more laissez faire attitude to tank maintenance">. cheers Darrel
  5. dw1305

    No polishing filter ?

    Hi all, No it isn't, but I like to have some tannins anyway, and I'm never after "gin clear" water. Yes, I have snails and Asellus, but I'll always have <"some particles left"> left in the tank. cheers Darrel
  6. dw1305

    No polishing filter ?

    Hi all, I don't like any fine mechanical filtration, so I never use any fine foam (<"nothing finer than 20 PPI">) or filter floss. cheers Darrel
  7. dw1305

    Why are filters not more user-friendly?

    Hi all, No, we have a <"lot of filter threads"> and I'd agree <"with your comments">. Personally I like to: Keep all the mechanical filtration out of the canister body Have as <"fewer seals and gaskets as possible">. I don't want <"a priming button etc">, but I like the Eheim double taps...
  8. dw1305

    Aquael ultramax or Oase Biomaster external filter

    Hi all, Having the <"double taps makes life a lot easier">. I honestly regard a <"pre-filter as essential">, unless you are extremely conscientious about filter cleaning. I have weedy tanks, so I can hide <"a big foam block in them">, but an OASE style pre-filter is a neater option. cheers...
  9. dw1305

    Minimizing flow with an external filter

    Hi all, It is found on Borneo, but mainly as an invasive alien. Pistia stratiotes is native to Borneo, and found in <"blackwater habitats in the Amazon etc">. I'd definitely include Ceratopteris thalictroides, biotope appropriate and perfect for this sort of tank. cheers Darrel
  10. dw1305

    Minimizing flow with an external filter

    Hi all, Lovely, <"they"> (or Betta channoides) are a fish I'd really like to try. Could you use a floating plant? cheers Darrel
  11. dw1305

    Modern External filter design

    Hi all, Yes, <"WiFi (or BlueTooth)"> connectivity is something else I don't want with filters or lights. Hopefully enough people will think that and a manufacturer <"will actually produce that sort of filter">. cheers Darrel
  12. dw1305

    Modern External filter design

    Hi all, That is what I do. I can't always maintain the tanks and I use <"really substantial foam blocks"> as a pre-filter. Yes I'd agree with that, for most people that is well worth trading for an extra set of gaskets. I just want people to use a pre-filter, for me I can hide it (and the...
  13. dw1305

    Modern External filter design

    Hi all, It is just a flow and <"dissolved oxygen issue"> really. Filter maintenance is a lot easier with a pre-filter. There is nothing intrinsically wrong with having mechanical filtration inside the filter body, as long as you are <"meticulous in removing it before it becomes clogged">. As...
  14. dw1305

    Modern External filter design

    Hi all, I think quite a few of us are <"of that opinion">. Have you been <"listening to Clive">? <"Same for me">, less is definitely more. cheers Darrel
  15. dw1305

    Sucker cups frustrating me😠

    Hi all, Have you (or anyone else) tried ceramic magnets? Could you use <"stainless steel hooks?">. cheers Darrel
  16. dw1305

    Flow rate.

    Hi all, I may have chosen IT for a reason, but it could just as easily have been HR............ cheers Darrel
  17. dw1305

    Flow rate.

    Hi all, No, it doesn't, but I'm not that <"interested in denitrification"> (the anaerobic conversion of nitrate (NO3-) to N2 gas). I actually actively don't want it to occur <"in the filter">. I'm going to use plants to mop up the NO3- and I'm going to ensure that I always have enough oxygen...
  18. dw1305

    Flow rate.

    Hi all, I've been lucky/unlucky to have visited quite a few sewage treatment works and they are quite impressive, although often in ways that make you wonder if a little more spending on modernisation and infrastructure might be a good idea. It was actually working with waste water that set...
  19. dw1305

    Flow rate.

    Hi all, No, "dwell time" isn't really relevant. It might have some relevance if you have a wet and dry trickle filter <"or HMF">, where oxygen isn't a finite resource and <"simultaneous nitrification and denitrification can occur safely">. The "slow flow" scenarios are: If the water is...
  20. dw1305

    Seeding a new filter

    Hi all, This forum really does has everything, we even have another shrinking <"Wagon Wheels"> post. cheers Darrel
  21. dw1305

    Seeding a new filter

    Hi all, It will be absolutely fine, you haven't added any more bioload, all you've lost is the nitrification from <"the rhizosphere"> of the established plants and they should start growing again pretty quickly. Also you will have <"more oxygen">, if you have more flow. cheers Darrel
  22. dw1305

    Media Basket

    Hi all, I don't use the baskets with these, just the <"lattice screen"> with a <"coarse sponge"> on top and then <"tip the coco-pops on top">. cheers Darrel
  23. dw1305

    Talk to me about filtration

    Hi all, Maybe that should have been eight years? I'm not sure what the Koi ones are made of, but they last really well. cheers Darrel
  24. dw1305

    Talk to me about filtration

    Hi all, It <"is in this one">, you can see the top of the power-head in the rear right corner. I still have the same sponge and power head from ~2012. They are the <"12" x 4" x 4" sponges they sell for Koi filtration">. I just looked and the 12" ones are £8.75 at <"Rainbow Koi">. cheers Darrel
  25. dw1305

    Talk to me about filtration

    Hi all, Pretty much. A lot of people like canister filters because you can use them as a syphon, I'm fairly keen on keeping all of <"the mechanical filtration outside of the filter">, so this isn't something that I recommend. I actually like the <"power head and sponge combination">. One...
  26. dw1305

    Talk to me about filtration

    Hi all, <"No, not a lot">. Fundamentally any canister filter is a <"pump in a bucket">. People like them because they are quiet and they "plug and play", not because they are offer any <"great advantage in terms of biological filtration">. If you are a CO2 user, then a sump system is going to...
  27. dw1305

    Talk to me about filtration

    Hi all, If you have a fish house it is a "no-brainer", you can run loads of air powered sponges from <"one relatively cheap linear piston powered air pump"> and a closed air loop. If I was building a fish room I'd definitely go down the <"HMF Czech jet lifter set-up">. It is also partially...
  28. dw1305

    Re-using filter media!

    Hi all, There will be, but that shouldn't be to much of an issue. You can <"pressure cook it"> if you were really bothered. cheers Darrel
  29. dw1305

    Oase BioMaster Thermo External Filter

    Hi all, Same for me. I'm not interested in priming buttons etc., but I like a pre-filter. An "in tank" one is fine for me, because I have such weedy tanks, and no interest in aesthetics, but I realise that this isn't an option for every-one. cheers Darrel
  30. dw1305

    Oase BioMaster Thermo External Filter

    Hi all, That is what worries me about <"nearly all the newer filters"> cheers Darrel.
  31. dw1305

    Chlorine, and bacteria.

    Hi all, It doesn't in the UK, mainly because we have low levels of chlorine dosing. We also have the <"belt and braces" of the plants"> if microbial nitrification is compromised. Water changes are slightly different, there is <"much more chance of damage">. I'm not a tap water user, but I...
  32. dw1305

    Can a second filter be causing more nitrates?

    Hi all, Both the BBA and the <"surface scum"> may relate to the removal of the snails. The fan shrimp is interesting I've noticed that I tend to get <"BBA in high flow areas and sponges">, where I assume that I don't have <"any snail grazing">. This is Marcel's @zozo 's "Punk snail" cheers...
  33. dw1305

    Can a second filter be causing more nitrates?

    Hi all, It should do, if you have enough oxygen then all the <"potential oxidisable material will consumed">. Definitely shows oxygen saturation. That is the approach I take as well. cheers Darrel
  34. dw1305

    Can a second filter be causing more nitrates?

    Hi all, I'm not sure about this, I've noticed that high flow tanks (<"mainly on PlanetCatfish">) often have "white water" and lots of BBA. Same for me, I'm pretty sure it is invertebrate grazing that makes the difference. cheers Darrel
  35. dw1305

    Can a second filter be causing more nitrates?

    Hi all, Theoretically it could, but in practical terms almost certainly not. The increased NO3 scenarios would be: If your first filter was oxygen depleted you could have a situation where nitrification was limited by oxygen supply and not all the NH3/NH4+ (and/or NO2-) would have been...
  36. dw1305

    Clear tubing

    Hi all, I usually do it about a month after I've thought "that really needs a clean". It isn't too bad in the winter (and I don't clean it for months at a time), but as soon as the days lengthen it starts growing again. cheers Darrel
  37. dw1305

    Clear tubing

    Hi all, It definitely develops less in the way of algae than clear tubing. cheers Darrel
  38. dw1305

    What's your favorite canister filter and why?

    Hi all, I have <"one of these in our kitchen">, it sits on the worktop next to the tank and is very quiet. cheers Darrel
  39. dw1305

    What's your favorite canister filter and why?

    Hi all, I'm one of them. cheers Darrel
  40. dw1305

    Modern External filter design

    Hi all, I don't use the media baskets. I use the <"bottom plastic lattice">, but I just tip the <"floating cell media">, <"coco-pops etc"> in. If I have a <"PPI10 sponge disc"> I put it on the lattice, but if I don't have a sponge, I'm not too bothered. I have a <"big sponge block on the...
  41. dw1305

    Modern External filter design

    Hi all, <"Same for me">, as Clive (@ceg4048) says, it is fundamentally a <"pump in a bucket">. cheers Darrel
  42. dw1305

    ADA Bio Cube

    Hi all, Have a look at <"Swiss Tropicals - Poret®aqua Media">. cheers Darrel
  43. dw1305

    What's your favorite canister filter and why?

    Hi all, <"Second hand Eheims">. cheers Darrel
  44. dw1305

    High-flow filter options for >200l tanks (2021)

    Hi all, I wish I'd though of it, but it was <"Clive's comment">. I've referred to it because it is such a good description. Some times you need some clarity, <"to cut to the chase">, or otherwise you get lost in the detail and <"never see the bigger picture">. Personally I never had <"any...
  45. dw1305

    High-flow filter options for >200l tanks (2021)

    Hi all, Spares are the killers with filters, I used to have a loft full of filters that would have worked, but needed a missing bit. Eventually I bit the bullet and threw them away and started buying second hand <"Eheim Classics">. cheers Darrel
  46. dw1305

    Media Cleaning

    Hi all, A bit of both really. Plants give you <"belt and braces"> I asked a former colleague, <"who is a microbiologist">, and he said that short exposure to the 0.5 ppm Cl2 in tap water was not going to have much effect on the microbial assemblage in the sponge etc. Things <"could be...
  47. dw1305

    External Filter Media

    Hi all, I've used these, and they are really good, <"but ugly">. I slide a 800 mL plastic lab. beaker. over the pre-filter and that saves a lot if mulm ending up in the tank. cheers Darrel
  48. dw1305

    External Filter Media

    Hi all, Yes it is absolutely fine if you keep on swapping it out, I'm just too lazy to do that. There is also the cost (both environmental and financial) of the filter floss ("polyester batting"). I don't expect any of the filter media I use now <"to ever need replacing">. I don't tend to get...
  49. dw1305

    External Filter Media

    Hi all, I wouldn't <"use the floss">, the reason is mainly personally that I don't like any <"fine mechanical filtration"> inside the filter body. I've not used them, but the <"OASE Biofilter"> range have an <"easy clean">, <"pre-filter foam">. Even in that case I would prefer a coarser sponge...
  50. dw1305

    External Filter Media

    Hi all, <"Big Foam block"> on the filter intake, and then PPI10 foam and <"Eheim Substrat Pro in the filter body">. There isn't anything wonderful about these, they are just physically robust and low maintenance. <"Any biological media"> will do. cheers Darrel
  51. dw1305

    Should I get rid of my filter?

    Hi all, I think so. cheers Darrel
  52. dw1305

    Should I get rid of my filter?

    Hi all, You are probably seeing <"complete oxidation">. I'd keep the sponge filter, but you might be interested in the posts by @Bart Hazes <"Low flow and no........">. cheers Darrel
  53. dw1305

    Does it matter if the tubing is too long?

    Hi all, No, it is fine as long as it doesn't "kink". The look about the right length to me. cheers Darrel
  54. dw1305

    Seachem Matrix media

    Hi all, I think he is probably wrong geological reasons. We have a <"few of these threads">, have a look at <"What filter media is best.."> and mention of <"Hess Pumice">. cheers Darrel
  55. dw1305

    bio media for fluval 305

    Hi all, I'd tend to agree, some of the articles are really good, some are definitely not so good and the ones on planted tanks are particularly poor. I haven't read all the articles, but I think he keeps Rift Lake Cichlids, at relatively high densities, in non-planted tanks and that has...
  56. dw1305

    Juwel eccoflow 600

    Hi all, Bizarre. I was going to ask why they didn't just use more physically robust filter media, but my guess is that theirs isn't a complete answer, but one intended for "public consumption". cheers Darrel
  57. dw1305

    bio media for fluval 305

    Hi all, He talks a lot of sense (and quotes our very own @MirandaB ). We have a few threads <"along the same lines">, about < "Biocensosis buckets"> and <"Biohome"> etc. cheers Darrel
  58. dw1305

    New Oase Biomaster 850 coming to a tank near you soon.

    Hi all, That is why I still use old Eheim filters, you can get <"replacement bits for them">. cheers Darrel
  59. dw1305

    Cleaning pre owned filter media.

    Hi all, I've never tried it, but they should be OK. Are they dry? They are made at very high temperature, but I could imagine if they were residually internally damp that they might tend to flake as they heated up. I might try simmering them first? cheers Darrel
  60. dw1305

    Cleaning pre owned filter media.

    Hi all, That is useful. We have <"a thread that might be of interest">. I'd still definitely <"keep them">. You can boil them, and not much is going to survive that. I'm not sure how the wotsits ("Biohome") get on in a pressure cooker, but we used to <"autoclave the sintered glass filter...
  61. dw1305

    Cleaning pre owned filter media.

    Hi all, What sort of filter media is it? I'd be 99.9% sure it is fine. cheers Darrel
  62. dw1305

    Aquael Mini Pat Powerhead

    Hi all, If you have a really big sponge block the speed of flow through the sides is pretty limited, just because you have a very large surface area for the water to flow through. This means that it doesn't tend to pin small animals against the foam surface, although shrimplets may still enter...
  63. dw1305

    Aquael Mini Pat Powerhead

    Hi all, Could you just install a <"larger sponge block?"> I use the pre-filter blocks <"Koi places sell">. cheers Darrel
  64. dw1305

    Anoxic filtration: An Interview with Kevin Novak. pecktec video link

    Hi all, We have a <"thread about this">. cheers Darrel
  65. dw1305

    Cleaning filter sponges in tap water

    Hi all, That is <"definitely true for the USA">, your tap water can contain x10 as much chlorine as we get in the UK. You also have to factor in we have the "second filter effect" of the plants and their rhizosphere. I spoke to a colleague, who is a microbiologist, and he was pretty sure that...
  66. dw1305

    Anoxic filtration: An Interview with Kevin Novak. pecktec video link

    Hi all, That is one problem I have with him, a lot of the statements <"he makes are definitely wrong">, and if his baskets work, they don't work for the reason given. In his blog he says Which is just b*llocks. You were just ahead of your time, these are the <"Horizontal Flow Constructed...
  67. dw1305

    Anoxic filtration: An Interview with Kevin Novak. pecktec video link

    Hi all, I think that the biocenosis buckets produce nitrate via conventional aerobic nitrification. A picture is worth a thousand words, and this picture (<"Dr Novak's blog">) tells me <"all I need to know">. There might also be anaerobic denitrification deeper inside the container. Yes...
  68. dw1305

    Anoxic filtration: An Interview with Kevin Novak. pecktec video link

    Hi all, We have a <"couple of Dr Novak threads">. I think his biocensosis buckets may work, but not in the way he thinks. cheers Darrel
  69. dw1305

    Do you switch off the filter when feeding microworms.

    Hi all, Yes, even the slight residual water movement will keep the micro-worms suspended in the water column. cheers Darrel
  70. dw1305

    Aqua one aquis

    Hi all, Another thread "ten years on", but I'm still using the same Eheim and Maxijet filters I was using ten years ago. cheers Darrel
  71. dw1305

    ADA Vuppa II - calling all owners

    Hi all, I don't know anything about surface skimmers, but you need to pick the dead leaves off your Frogbit. cheers Darrel
  72. dw1305

    Oase Biomaster Thermo 600 - Priming problems

    Hi all, I don't know if this thread helps any <"Oase Filtosmart......">. I must admit <"I hate priming buttons"> etc. cheers Darrel
  73. dw1305

    Connecting/Combining multiple Filters

    Hi all, I'd agree with @rebel, that is going to be difficult with the fish you keep and probably plants in the trickle filter is your best bet. cheers Darrel
  74. dw1305

    Cleaning filter sponges in tap water

    Hi all, They have a twisted wire handle, it is bendable, but quite stiff, and I wouldn't trust one with thin glass. Cheers Darrel
  75. dw1305

    Cleaning filter sponges in tap water

    Hi all, Was that one of mine? I was more interested in the spiky, thin leaved, plant to the right of it? I use a <"laboratory burette brush">. "16mm" is about right for 13 mm hoses, but they come in other sizes as well. cheers Darrel
  76. dw1305

    Cleaning filter sponges in tap water

    Hi all, Should be all right, the UK supply is fairly lightly chlorinated (less than 0.5 ppm), so even a good rinse won't sterilise the sponge. In the USA they <"use a lot more chlorine">, because they don't have any environmental legislation, the rivers are open sewers, and it is cheaper for...
  77. dw1305

    Connecting/Combining multiple Filters

    Hi all, I agree with the other posters. I've had this system with a power-head, <"with intake sponge"> and planted over-tank <"trickle filter"> and they are the <"Rolls-Royce of filters for low-tech">. cheers Darrel
  78. dw1305

    A Second Filter?

    Hi all, To be honest you can look on the planting as your <"second filter">. cheers Darrel
  79. dw1305

    Oase filtosmart thermo 100 - problems

    Hi all, I still do, <"I hate priming buttons">. All of my tanks are just below the level of the tank (none of them are under the tank). The <"head you require to get the syphon going isn't huge"> and you get more flow. cheers Darrel
  80. dw1305

    Oase BioMaster Thermo External Filter

    Hi all, I would. I don't have a filter with an inbuilt pre-filter, but I use <"really chunky sponge blocks"> on all the filter intakes, and I've found the same as @hypnogogia, it dramatically limits how often you need to open the filter body. I don't like any mechanical filtration (<"fine...
  81. dw1305

    Oase BioMaster Thermo External Filter

    Hi all, You probably just need to clean <"the pre-filter">. We have quite a few <"OASE Biomaster threads">, which might tell you what you need to know. cheers Darrel
  82. dw1305

    Oase BioMaster Thermo External Filter

    Hi all, It isn't ideal, you are right you want as fewer bends as possible. It isn't a <"filter that I own">, but I'd definitely change the pre-filter sponge for a <"coarser PPI sponge">. Personally I'm not a <"fan of floss in a filter"> (I'll be honest I'm not a fan of floss full stop)...
  83. dw1305

    Aquael Mini Pat Double Sponge Cleaning

    Hi all, Can you clean them one sponge at a time? Personally, even if it is one sponge, I'd just give it a quick rinse every couple of weeks cheers Darrel
  84. dw1305

    How to increase flow in a 60L cube

    Hi all, Welcome to UKAPS. I think some people <"have modified"> the media set-up and <"pre-filter sponges/intake"> to give them a bit more flow. cheers Darrel
  85. dw1305

    HEATED FILTRATION (non Oase?)

    Hi all, Same for me, why would you want to take a design that works <"and trash it?"> It just doesn't make any sense. cheers Darrel
  86. dw1305

    Shrimp safe powerheads

    Hi all, One <"with a sponge">, if you can hide it in the tank? The sponge is a great browsing surface for shrimps and small fish, but <"not as much for snails">. cheers Darrel
  87. dw1305

    Eden filters discontinued, no spares available

    Hi all, Yes, it sucks. I'd like to think that the present world situation would make manufacturers think a lot more carefully about the concept of <"built in obsolescence">, but I guess it is built into most companies financial models and it isn't going to happen any time soon. cheers Darrel
  88. dw1305

    Eden filters discontinued, no spares available

    Hi all, I suspect all our members (who have had tanks for a reasonable amount of time) have a big pile <"of "obsolete" filters">, which are perfectly good, except for missing some small, but essential part. That was why I started buying <"second hand Eheims">, the spare parts are <"ridiculously...
  89. dw1305

    Snails in filter

    Hi all, I have snails, Blackworms and Asellus in my filter. I look on them as <"a good thing"> for the reasons @Zeus. mentions Strangely "snails in the biological filter"can be an issue in sewage treatment, where you don't have plant/microbe biofiltration. If you get high enough density of...
  90. dw1305

    A better internal filter?

    Hi all, <"Eheim Aquaball"> or <"Biopower"> internal filters? Personally I like a <"Maxi-jet powerhead"> and a <"big sponge block">. cheers Darrel
  91. dw1305

    quieter alternative for JBL

    Hi all, You may not even need a new impeller, changing the spindle and bushing may have the desired effect. I'd definitely start with a new spindle ("shaft") (and a new impeller if the spindle doesn't help). Even the ceramic spindles wear eventually, although I usually manage to drop, and snap...
  92. dw1305

    Filter for 90l

    Hi all, I like Eheim filters, but I'm not as keen on the Ecco series. I own second hand <"EHEIM eXperience and Classic"> range filters. cheers Darrel
  93. dw1305

    Oase Biomaster 250 - Heater does not fit

    Hi all, No, you are good. Filters, and particularly filter media, have their own mythology and it is really difficult to sort out the good, from the bad and the ugly. A lot of companies are very keen on making all sorts of claims for their "premier media" <"without any scientific back-up">...
  94. dw1305

    Oase Biomaster 250 - Heater does not fit

    Hi all, The thinking behind more mechanical filtration media, than biological, is that a lot of the role of the microbes within the tank will be taken on by the plants. It is true that plants will mop up all forms of <"fixed nitrogen"> and <"provide a larger area where microbial nitrification...
  95. dw1305

    New Filter Advice + Changeover

    Hi all, If you get the double -taps for the <"Eheim Classics">, it saves a <"lot of messing about">. I use a mouth syphon (suck on the outlet tube) to refill the filter, I know <"it isn't recommended">, but I've always done it, and I haven't died yet. I think priming button are a prime cause...
  96. dw1305

    New Nano HOB filter

    Hi all, No, you should be all right. "Plant/microbe" bio-filtration is more effective than "microbe only" nitrification, so as long as you have growing plants they will <"do most of the heavy lifting">. HOBS tend to be well oxygenated and <"dissolved oxygen"> is the really important thing in...
  97. dw1305

    New Nano HOB filter

    Hi all, I'd go <"that way">. If you have "Substrate Pro", it would be my <"media of choice">, if somebody else is buying. Really easy with a HOB, just tip the media out into container (ice-cream tub?). If you want to keep any of the mulm etc., just rinse the sponge and tip the biological media...
  98. dw1305

    Rear sump in tank

    Hi all, Are you adding CO2? If you aren't you need much less flow. I think they are probably right. cheers Darrel
  99. dw1305

    Small Canister filters for small tanks.

    Hi all, I’ve had Eheim Liberty HOBs without any problem. The <” Eheim Aquacompacts” > have the pump in the intake, but they are pretty ugly. Cheers Darrel
  100. dw1305

    Small Canister filters for small tanks.

    Hi all, They can go by the tank, they just have to be lower than the water surface, so that the water flows into the canister under gravity. If you look on the Eheim etc. website it will give <"you the minimum head height">. I have all my canister filters next to the tank, you get more flow...
Top