For NitrAtes use Potassium Nitrate KNO3, and for Phosphates use Mono Potassium Phosphate KH2PO4, or Fleet enema...
I'm not sure if greg ships to the UK, I have sent him and email asking him just that, so will know soon. with a plant tank you want a target range of 10:1 ratio Nitrate to Phosphate.
Originally Posted by danny
how do i get my nitrates up?? and phosphates i thought the idea was to have them at 0
the tank is 75 uk gallons