I just recieved a 20 gallon tank from someone off craigslist, with some fish. They told me the fish were sunset platys, some kind of tetra, and an algae eater. I need help figuring out what kind of tetra and what kind of algae eater. Here is the algae eater: sorry its such a bad picture, taken with a cell phone camera. If you need a clearer picture i can get out my digital camera. And heres one of the tetras.