Hi all, new member here looking for advice. I've had fish in the past, but it has been a very long time since then and I may be rusty on my knowledge. I just recently set up a new 20 gallon fresh water tank. Things have been just fine but I am wondering if I am at, over, or getting close to capacity. I just couldn't seem to find a straight answer online. The store I buy my fish as do know what I have in here so I'm hoping they aren't just trying to make money on me and I'm overstocking my tank. So here I am to double check. So, as of today, I have 5 mollies, 2 gourami's, 2 cory's, 4 snails, and 1 African dwarf frog. How am I doing capacity wise?