Okay, my dad picked up a 10g with an generic filter at walmart to take some of my sons guppies. He recently bought an AquaClear 20, to upgrade on the tank. What's the trick to switching out filters to keep the bacteria? I did mention two are better than one, but he just wants to put one on there.
I have to head to work, so I can't wait to hear the answers.
I have to head to work, so I can't wait to hear the answers.