hi my bga problem continues. my planted tank has been set up for 3 weeks now and im having a bga breakout its covering my mosses, patches on the bog wood, specks on the substrate. and now getting on to the leaves of other plants .Ive cranked up the co2, drop checker is either on lime green then up to yellow. lighting 3hrs in morning 6hrs teatime onwards, 56watts t5 in a trigon190 .im thinking of doing a 72 hr blackout after a 50% water change on sunday. at the moment the ammonia is nil ,very high nitrite, havent tested nitrate with nitrite being so high .im dosing 4.5ml of macro and micro solutions every day using the pps system. do i need to dose kn03 on its own even though its in my made up solution. any tips to keep the bga away after the blackout? (should i be doing a blackout after 3 weeks or should i persevere) forgot to mention ive added another powerhead for improved circulation no improvement as yet.