T-Rexx
Aquarium Advice Activist
just bought 5 gallons of ro water for my 60 gallon tank. i want to get my ph down a bit. but i know messing with the ph is worse for fish then having it high. since messing with the ph is so bad how much ro water should i add at a time to not kill my fish? my husband says all 5 gallons its 8% of the water. but part of me says a gallon or 2 and slowly work to 5 or more. once i add ro water to the tank how do i keep the ph stable. will it be ok? does it fluctuate? do i add the same amount of ro water each time i change the water to keep it the same ph?