eeldarb21
Member
I was wondering, i have a 55 gal. cycling right now and i checked the levels and they are lookin' good so far. I want to get ready for my "big" water change. If i have 55 gal. is 5 gallons good enough to change? My ro unit doesn't make water quick enough so i might have to go down to the lfs and buy some for 1$ a gallon...