ah thank you very much. sorry a couple more questions, in a 5 gallon bucket, where is the 5 gallon mark? is it at the rim of the bucket? I want to know so I kind of know how many gallons I actually have in the bucket so I know much nutes to give them. I hope this makes sense. and how much does the pH fluctuate day to day using only general hydroponics flora micro,gro,and bloom?