Okay I'm new to the world of fish, so could you guys help out this newcomer? Anyways I have a 10g tank in my room with 2 filter going at once I have a under gravel filter, and a sponge filter. Next I have 3 live plants in my tank. For the fishes I have 2 small angel fish, 2 discus (1 big, 1 small), 1 albino cory, and a black ghost knife fish. I use to have an alge eater but it died this morning. I have a question do you guys think I need an alge eater in my tank can my tank surrive without it? Do I still have room for any other fishes? If my tank can live without the agle eater, what other fish do you guys think I should get to replace the alge eater? how many fish can I have in my 10g tank? Any suggestions?