Algae Strategy!

Discussion in 'Algae' started by bugs, 11 Oct 2018.

  1. Andrew Butler

    Andrew Butler Member

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    People on here have gone both ways; cheap and cheerful from amazon and go by what it says or Hanna make some quality ones which I think are worth investing in if you can afford one.
    https://www.hannainstruments.co.uk/hi-98100-ph-checker-plus.html
     
    dw1305 likes this.
  2. bugs

    bugs Member

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    I did come across Hanna but not the more affordable ones you linked to. Quite happy at that price!
    Out of interest... I've seen images of aquarium water being tested by removing some of the water into a container. Is there a reason the probe is not simply put straight into the aquarium?
     
  3. bugs

    bugs Member

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    Interestingly the digital pen meters seem almost as faffy as liquid tests - what with calibrating, cleaning with distilled water, and storing with "storage solution". The upside is obviously having a specific value vs trying to match colours etc, however, not the simplicity I was hoping for...
     
  4. dw1305

    dw1305 Expert

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    Hi all,
    pH meters are quite <"high maintenance bits of kit">, if you want something that is "plug and play" then a pH meter probably isn't for you.

    I'm not a CO2 user, but If I was I would definitely rely <"on a drop checker">, rather than a cheap pH pen. The only disadvantage of drop checkers is that they take a while to reflect the actual CO2 level.

    If you understand the workings of the pH meter, buffer it before use, <"store the electrode on the appropriate storage solution"> etc. then you can use a pH profile and a drop checker to give you an accurate pH profile.

    cheers Darrel
     
    Last edited: 14 Oct 2018
  5. bugs

    bugs Member

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    I just looked at the price of the buffer and storage solutions :what:...
    I have a drop-checker but I like the idea behind this one. Maybe a better use of my investment, albeit not supporting the PH profiling for which I think I may just buy a liquid test kit.
     
  6. Nick Norman

    Nick Norman Member

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    I have been using a cheap PH pen from ebay. pen and buffers were under a tenner. It takes about 5 min to give an a accurate reading so i just clip it to the side of the tank when doing a profile. Even if the PH reading isn't exact I think the drop/change it reads is fairly accurate, along with a drop checker its probable good enough. I use the drop checker to tell me the saturation and PH pen to know when it gets there and if it stays the same. Don't need to know the exact PH.

    I keep the buffer solutions in air tight containers so i can use it several time.
     
  7. Edvet

    Edvet Global Moderator Staff Member

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    For a pH profile any cheap one will do, if you want to invest in a good one look for Hanna or Milwaukee stuff.
     
  8. bugs

    bugs Member

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    I've bought a cheap but well reviewed one off Amazon. Thanks.
     
  9. Jayefc1

    Jayefc1 Member

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    Me too brought a cheap.on hang on side of tank if it drops from 7 to 6 before lights on i know I've got 30 ppm of co2 job done
     
  10. john dory

    john dory Member

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    I just use a drop checker.
    As long as it's green at lights on...I'm happy.
     
  11. Edvet

    Edvet Global Moderator Staff Member

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    Sure, but we often see people with problems who say they have a green DC, seems it can give false security:oops:
     
  12. john dory

    john dory Member

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    I'm not using particularly powerful lights,and none of my plants have a high carbon requirement.
     
  13. bugs

    bugs Member

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    I've made a start measuring PH but have another question... My KH is off the scale based on a dip test (actually, two dip tests from different brands). Does this mean my PH will be less reactive to CO2? (Something I thought I read somewhere).
     
  14. Edvet

    Edvet Global Moderator Staff Member

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    Different theories about that, some ( me included) say yes, others say a 1 point drop is a 1 point drop. Let''s see the profile first:)
     
  15. bugs

    bugs Member

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    The readings so far seem, erm, static:
    Lights are on from 4pm to 11pm. CO2 runs 25hrs.

    Date / Time / PH
    16/10/2018 20:45 6.5
    17/10/2018 12:13 6.9
    17/10/2018 15:51 6.9
    18/10/2018 08:32 6.9
    18/10/2018 15:52 6.9
    18/10/2018 23:12 6.9
    19/10/2018 08:11 7.0
     
  16. Edvet

    Edvet Global Moderator Staff Member

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    Looks like 6.9 all day? Why do you have the CO2 on 24 hours? Are you purposely dosing 24/7?
    Could you test a glas of tankwater taken out of the tank the day before ( so CO2 has gassed out).
    Solid dose 24/7 can work, just adapt light to it.
     
  17. bugs

    bugs Member

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    In the past I've found solenoids to be a bit of a pain. Running exceptionally hot and a whiff of unreliability. I've had both the "normal" solenoids and the low-heat versions. When I first started in planted aquariums (almost 20 years ago now :crazy:) I ran 24/7 and it was one of my most successful aquariums. I'm not ruling out other factors and I'll not rule out fitting a solenoid at some point if that seems the way to go.

    In the meantime... Today is maintenance day so I'll draw of some water before I start and test that in 24 hours time to see what it shows.
     
  18. Edvet

    Edvet Global Moderator Staff Member

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    24/7 can work, just need some lower light when compared to the full 1point pH drop.
    I used it with succes too.
     
  19. bugs

    bugs Member

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    Interestingly, the siphoned off sample; measured about 15mins after removing from the aquarium, was 7.1. The aquarium, immediately following the water change, was still at 6.9... I'd just changed about 40% of the water...
     
  20. Edvet

    Edvet Global Moderator Staff Member

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    You should leave the sample alone abit longer for it to gass out.
    If it is indeed a .2 drop just adapt light to that, it will work.
     

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