10mm
Aquarium Advice Newbie
So I have a little 10 gallon tank and am running a top fin filter that came with a 5 gallon kit I bought for our first couple goldfish. They survived for a year but I felt they needed a bigger home. So I gave them up for adoption. They now reside in a huge tank. I decided to go a little bigger and got a ten gallon. But I fwant to upgrade filters as I don't think the cheap top fin one is not up to the task. So I am considering the auqaclear 20. Question is. Can I take the old bag from the top fin filter dump out the charcoal and seed the new filter? I understand the importance of keeping the bacteria and do not want to run two filters.