Hello all!
My name is Katie. I'm new to the forum and new to having fish. To keep it short, I have a 20 gallon tank with 2 mollies, 3 cobra guppies, 2 skunk catfish cories, 1 african dwarf frog, and 1 gourami. I started my tank about 1-2 weeks ago. I used the filter it came with-tetra whisper...