How often should i put aquarium salt in my guppy tank?
Hello Jessica I have 7 years experance with guppies.It is true they do not have to have salt,but it can only do them good and not harm.Once you put salt in a tank it stays there and does not leave with water when it evaporates.You should do a 20 percent water change atleast every other week,just add back the salt that is taken out with the old water.So lets see if you take out 2 1/2 gallons that is half ,add back 1/2 tablespoon of salt,1 1/4 gallons ,1/4 tablespoon. But you do not have to be that exact.I read in a TROPICAL FISH MAGAZINE that guppies are raised in salt water that is close to ocean water strinth in salt level.
