cant swim

Hey everybody, so yesterday me and my girlfriend were walking around in wal-mart when I decided I'd pop in to take a look at the fish since I was grabbing some food anyways. We saw a group of dwarf gourami in a tank, which I thought was unusual so I took a look. I found one who was kind of...

Hello. I joined this forum to ask this question. Here's my current tank set-up: I have a 20 gallon tank with an under-gravel filtration system as well as a new power filter (rated for 20-30 gallon aquariums). I don't have a good water testing kit but the pH is pretty much 7.0, no detectable...