i grow in 3 gallon buckets full of perlite. get a plastic mop bucket or waste bucket ,can't be clear,.(walmart has 2 gallon square ones for $2) put a 7/16 hole(about the size of a pencil) in it 2 inches from the bottom , fill the bucket with perlite (walmart bag fills a 3 gallon bucket perfect $7) put your seedling or clone right into it and water it.you can just bury the rockwool starter or peat puck in the perlite..this is mimicing your roots hitting ground water,its like a soil hydro mix kind of..it so easy to grow this way i will never do soil ever again..i ph my water to 5.8 but 5.6-6 is good i use low nutes for veg like 200ppm every other water or 2.for flowering 600ppm every water.....at first add a cup or 2 of water every day (keeps the top wetter until the roots grow to the bottom) then you can top it off until you get water at the hole 2 inches from the bottom,you can water every day or once a week just don't let the bottom get too dry,its that easy.if you add too much nutes and start seeing nute burn just add a gallon of nuteless water and its fixed..anything else just pm me