I messed up. I have a 20 gallon tank with a heater and 2 filters and i recently got 6 corys. 2 albino, 2 bronze and 2 emerald. I know that they shoal but I also heard that they do better in a group of their own species. Do you think I should re home them and get an group of one species or will they be ok together? I cant get any more corys so keeping or re homing are my pretty much only options. I don't care what happens to them but I want to give them the best life possible and if they aren't happy them I can find a better place for them. I'm new to fish keeping so any advice is appreciated.