I know that the amount of water you change and how often depends on if the tank is cycled, the size, and how many fish are in it, but is there any basic guideline someone could post? I don't know how much the amounts change between the sizes of the tanks, but is there anyway to make a list of water change percentages for different size tanks?? I think that would help a lot of people. I know that I'm always looking up or asking someone specifically how much water I should be changing. But of course, to be safe with any tank, you should check the water (nitrates especially if it's cycled) to know when the tank requires a cleaning. Right?
So to get things started, here are my specific tanks. Are the water changes correct?
10 gallon divided 3 ways with 3 male bettas. - I do 1 50% per week and vacuum.
5 gallon divided. It currently only has 1 male and I do 1% per week. Would this change when I add a second fish?
1.5 quarantine tank - I've read that 1 50% and 1 100% per week would be fine?