Water changes

[willk7]

I've had my axie for over two weeks and have been doing a 25% water change every week, is this to much? To little or to often? Thanks
I have a:
20 gallon tank
20 gallon filter with a sponge under it to reduce water flow
20 gallon air pump with stone

and my water parameters seem to be fine.

 

[tundrabadger]

Sounds like a proper amount on a good schedule all things being equal. .