ok as u guys know hes a new grower, sulfuric acid isnt one of thise things found in your grociery store. he said there is a hydro store by him so get some ph down asap. also i really have no idea what kinda system this is, if its a dwc the air pump has to stay on 24/7 but if its a drip style i would suggest feeding them 4-5 times a day, with drip systems if run 24/7 u might need to ph balance more often, and u dont have to run it all the time but you can.