I recenty purchased a 40 gallon "tall" aquarium that came with the fish living in it. One of those fish is a large clown loach. I have already been instructed to return him to my LFS or find him a good hom myself and I am currently working on that right now. As soon as the loach is gone I am going to get some cories for the tank. I can't decide if I should get 1 large shoal of the same type of cory or 2 smaller shoals of 2 differrent types. What do you guys think would be best? If I can have 2 different types (pandas and peppered for example) are there any 2 species that get along better than others? Thanks.