Does anyone have one of these? I'm just curious as to what they notice as far as behaviour goes. My black khuli lives in a tank with two other striped khuli loaches. The two regular ones are very shy and spend most of their time hiding, but the black is a completely different story. He does vertical circles on the tank walls all day long, literally 24/7. I'm beginning to think he's brain damaged or something of that matter. Just curious if anyone else notices such active behaviour from a khuli.