Another thing i should point out...
If you change your tank water using a hose, make sure for both FILLING and EMPTYING the tank you cover the opening with some kind of sponge...
My Panda loaches one day decided to try and track back up the hose when i was filling my tank and i swear they are powerful swimmers for their size... one of them was literally slowly inching his way back up the hose while i was filling the tank, and if i didn't catch him in time, he probably would have made it all the way to the tap itself over 10ft away...
-EDIT-
Also, if yours start to breed, please let me know what your tank conditions are like, coz i really would love to get mine breeding to help some of the stores here start stocking them, especially since they are on the endangered species list... which i didn't find out till about a week after purchasing them...