First off I am sorry to say that a 26 gallon hex tank will be way to small for the clowns when they reach maturity. Now I am not going to be to tell you that you cant have clown loaches in your tank......that is up to you. If you decide to go ahead with the clowns then let me tell you right up front that clowns tend to be a bashful fish, as well as being a fish that is a spieces that is harder to keep. They are more suseptible to disease and ICH.
As far as what would go well in your new tank you are going to need to get a few hardier fish to get the tank cycled. You say the tank has been cycling for 2 weeks. What method did you use to start the cycle? Also what are your readings to date, ie. ammonia,nitrites and nitrates. Unless you did a fishless cycle then you are not cycling the tank but instead just been letting it run.
If you have good readings,which after 2 weeks you wont be close to being cycled, then you can slowly add some fish. I would recommend for the size of the tank you have that you go with 6 to 8 tiger barbs. They are the same coloration as the clowns as the clowns when placed in a tank with tigers have been known to school with them. Also another good fish for a tank of that size would be a few black skirt tetras, the silver of their scales would look good off the black of your tank. Another good addition would be a few cory cats, they are compatible with about everything and they are a blast to watch play.
Sorry these arent the answers you were looking for but I feel it would be better to avoid the loaches and go with a different type of fish
HTH
Les