My new adopted Clown loach, the one which is about 6-7 inches long has started to get quite bossy in the tank. I have put some tubes inside the tank where they all love to hide. One for him and one for the remaining 7. However, in the evening he chases them all over the place - clicking loudly all the time. Nothing really aggresive - just chasing them off. He/she will spend time in the tube and not allow any others in except for my smallest Clown. He will then go to the tube below and empty them all out before returning to his own tube.
On a smaller point, the amount of food they eat is incredible. Samson, as I call him


I don't know if it is any coincidence that this loach is the one I have posted about with the tail mutation. Maybe he just needs a bigger tank. he does have privacy though.