I have 2 Bolivian Rams and a group of Clown loach and they are fine.
Clown loach should NOT be kept in anything smaller than pairs though and I would'nt have thought that your tank would be big enough to house a group of these?
I have a pair of Bolivian Rams in with 4 Clown Loaches and have no issues between them, but they are in an 80g. I would not put a Clown Loach in anything smaller then a 50g, and they are schooling fish and should be in groups of at least 4, so a bigger tank is even better.