I missed out the word NOT when I said dangerously high. Your nitrates and phosphates are OK for fish. I am surprised noone shot me down in flames with this statement!
Thats cus no-one else reads this thread anymore
Glad to hear increasing your CO2 has helped, but double check your fish are OK tomorrow during lights on. If you ever decide to go>2WPG and settle on a stable fert regime with CO2 at 30ppm, algae will only appear when you get something wrong. Plus, you can grow what you like.
Dave.
Will do
As soon as I see what happens to nitrates over the next few days I will have a stable dosing programme, something like KNO3 3 x per week at 1.6ppm per dose and K2SO4 at 3.3ppm, will probably not dose phosphates (will have to see how they settle) then decide...
I'm enjoying the learning experience - think my biggest problem was dosing P when I should not have...