I do a 5g water change once per week -- My system volume is probably 40-50g with sump, so around a 10-15% water change weekly. I can sometimes go every two weeks but prefer to go weekly.
Even without water changes I have to dose nutrients regularly, as my biofilter is extremely powerful.
I find it easier with a smaller tank to just consistently do a small water change weekly to keep everything in balance.
Even without water changes I have to dose nutrients regularly, as my biofilter is extremely powerful.
I find it easier with a smaller tank to just consistently do a small water change weekly to keep everything in balance.