hello all, im new to this site but really needed sum input, i have a small hydro set up, it is 2.6 feet by 5.6 feet, the temp is usually 82 f. but never goes above 85. the hydro sys consist of a 10 gall res with air stones and a water pump that drives irrigation to six 6" pots on the top .im growing four white widows and two blu mystic. there are 2 co2 gens i made from sum 2liter bottle with lines placed behind my fan. the intire space is rapped with mylar. and i got a 400 watt hps light in wich i took a a/c flex line to cool it off. My seedlings topped the rockwool and i moved them under the light and all seems to go well so far, but i dont know what to expect for a yield and i wanted to know if i still needed additives, the plants are nice usuing the dutchmaster nutes i got going now. can anybody help ??