I started cycling my 10 gallon today which of course means i'm now thinking about what to put in it. I want to put 4 serpae tetras in it and i'm thinking about moving my dwarf gourami from my 55 into my 10. Would that work? I was also thinking about getting some cories, but i've heard that they need to be in groups of 4-6. Do i have room for that many in my 10?