hi everyone, we have kept fish for some yeatrs now, but had a long break, and just got a new tank 4 foot y 18inches, not sure how many litres that is lol, we have a few community fish in tank, angels green barbs, and a couple of guppies, we had a couple of clown loaches, and i really liked these , so we bought three more, since then a couple of the loaches have become very aggressive to my other fish the new ones were wild clownloaches, does that make a difference that they are wild, it seems wild is a good description lol, not sure what to do about then=m, as they arereally nice looking fish.