Got my system running good PH steady stays in range 5.8 64 and the temperature of reservoir highest temp was the first day 67.8 then it cooled off overnight now it stays in low 60's. My biggest concern is figuring out how many gallons of good old H2o I'm running. I have 3 five gallon buckets connected together with 2" pvc and 5.8' away is my 17 gallon re's running through 1" flexible pipe just don't want to over or underfeed my baby's What's that maybe 3.5 to 4 gallons in one bucket and maybe 15 in the reservoir? At the most that what 27 gallons? NITL WTH is that right?