Water changes on a 20g

[dreamcatcherr9]

10% weekly

or

20% every 2 weeks

What is more common?

 

[Parasite1971]

I do a 10% change every weekend on my 29 gallon. In a small system I would not want o go much longer than that, Parameters change too fast.

 

[Dbichler]

Either works but if I had a 20 I would do daily because you can control evap at same time without ato

 

[Pbh-reef]

either can work -I prefer weekly water changes on my 10 gallon because it helps the tank stay looking good and I enjoy the 30 min or so it takes to clean the glass, siphon out algae and clean the sand and then add new water each week. but I think what is most important is that you have a regular schedule and stick to it.

 

[lapin]

Im a 10% weeky person no matter what size tank