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came across this, seems you can calibrate it and reasonably priced. Anyone tried one?

Just bought a TDS/PH/Temp meter off Ebay. Firstly, thought I'd calibrate it before using it just in case it's been sat about in some warehouse for a long time only to find the instructions say to calibrate using 6440ppm standard fluid. I assumed that it made no difference what fluid you...

Diy lily pipe cleaner. by AWB70, on Flickr Tried many commercial pipe cleaners which to me have been a brown trouser experience. Knocked this up and it works perfect for both 13 and 16mm pipes. Fishing line, air line tubing and a body scrub. Cut a piece off, roll up and insert about 20mm into...

I'm thinking of glass here. Managed to get hold of two sets of lily pipe which means I now have two pairs per tank. Hopefully I can now leave a set soaking in bleach until I change them over. I find soaking them in bleach when you only have one set for an hour or so doesn't really have much...

Has anyone successfully did this? Managed to break the end of my inlet where the intake slots are. I've ordered a new one but the old one still functions for now, I just rubbed the sharp edges with sand paper and put my mesh filter back on. On the plus side it seems to be less restrictive and...

Bit late in the day as I've already done this many times. Just wondering if it's ok to use a flexible brush like the ones for pipes through the hydor heaters? I generally do but it's dawned on me that there maybe some bits in there I could damage.

I have a couple of stainless steel mesh filters, the ones with the rubber ring by AE. They're a bit fragile and managed to break them probably because I put them on plastic intake pipes. I know have glass and they seem to fit on a lot easier. I was thinking of trying to glue them back together...

Anyone know where I could get hold of the mesh and what the black plastic is on shrimp filters? The one I have which was great but very breakable, in fact, fell to bits and the ones that are not as fragile have very little surface area, I have to clean it every 3 days. I fancy diy'ng a custom...

Just bought myself a ph pen. Wondered whether or not to also order some storage fluid, I notice that on some of the fluids it says not to be used with pens using gel probes. Wondered why the difference?

Has anyone seen one of these about lately? I'm referring to the surge protector strips that have little plugs on that you can put labels on. I used to have one ages ago but can't find one. With all the pipes and cables going through the hole in the back of my cabinet it can get a nightmare...

Is there a de-ionising resin that will fit these http://allaboutkoi.co.uk/2-10-pod-water ... 29723.html I'm going back to de-ionised water and I have some of these pods doing nothing. They have a pre-filter and carbon in at the moment. I'm using my old API purifier but the resin has nearly ran...

I'm thinking of getting some stone locally I live near both the beach and the lakes so should be able to find some interesting looking pieces. Is there anything to watch out for that might be detrimental to water quality? I was thinking of just testing with vinegar for hardness.

I was thinking off knocking a batch up and wondered what the people here do for making their own solutions. Any tips appreciated before I have a go? I was going to use the method off here http://www.plantedtank.net/forums/gener ... d-how.html or has opinions changed on the best way to do it? I...