"Martin" wrote in
:

I need to add Nitrate and probably Potassium to my tank in order to
get the plants to grow and algae to die off (hopefully). My Nitrates
are 0 (when I add Flora Grow or other substance it increases slightly,
when I perform a water change it increases a lot) not long after (in
days) its back to 0 and there seems to be far more hair algae (some
brush is appearing as well) covering all my plants. I inject CO2 as
well. Its bloody frustrating.

So apart from the 3% potassium that the flora grow will put in (which
is expensive as well) - I have purchased some Sulphate of
Potash......for garden usage. It says on the packet that it has 49-50%
K2O - but it doesn't state other chemicals. It's very white and very
fine grained and looks like cocaine (as if I would spot it even if it
were put in front of me - lol). Anyway if I catch the fish using
straws and floating around the living room, then I know something has
gone horribly wrong - lol lol.

My question is - is this stuff suitable for an aquarium when
sufficiently diluted and where can I find the maths for diluting it
properly. I live in the UK and the product is
http://www.gemgardening.co.uk/prodlist.asp?val=veg however, has anyone
else used this at all. I would hate to kill off all the fish in an
experiment to get rid of algae. I have read, on the Krib that about
3/4 teaspoon for my 250L (66G) tank should be enough per week. But I
would like to make up a solution so that it can be added easily.

Does anyone know what I can buy for the KNO3 please....In the UK.....

Thanks in advance

Martin





I don't know about that stuff you have, but if you need anything like
that, try to find a hydroponics store near you. I found everything to
make a couple year's worth of PMDD for about $10.