This is rediculus. Most of you blowing things way out of proportion here. I understand that you all want the exact best for the fish. But come on no mater how big of a tank you put a fish in it will never be as good as if it were living in its natural habitat. I have kept clown loaches with 1" albino loches for over two years and they get along great and even schole and play together. So in my opinion, get the loaches and the cories that you want and enjoy them. Even if they get stunted, as long you do the best you can to take good care of them they will still live long healthy lives. If you start to feel that what you are doing is not adaquit for the fishs helth them give them to someone else who can or to the lfs no big deal.
this is exactly what I am getting at.
keeping clowns and few cories in 55 gallon tank is likely not going to be a nightmare.
it is going to be an enjoyable tank.
if they clowns do get huge, well, any LFS will gladly take them and sell them for big bucks. They are hard to find and sought after when they are big.
its not like you are trying to find a home for a big ugly pacu that no one would want.
i12 Volt.