Thanks for the quick responses!
I'll chase the kapi mana thing and my shark is a bit longer than 4 inches, maybe almost 5; he is hard to measure. I think he distrusts the tape measure! He is a happy fish with all that room though.
I had lots of tiger barbs, they ate a lot of the finer plants which are recovering nicely. I'd had them for quite some years and over a period of about the last 3 to 6 months they started dying. I guess they got too old. They certainly got fat and lazy. The barbs in the end learned to make a sharp turn and let the shark shoot by, and they stopped chasing each other. They definitely put in minimum effort. They got quite dark too, the males (I think they were the males) almost completely black with a spot of red close to the face/ on the face. Sometimes the males still put on a bit of a show circlig each other real tight but this happened less and less. I never once had fry, never saw eggs for that matter either, maybe the bronzes ate them? I decided to let the last one 'retire' with grace before repopulating the tank, that said guppies would probably have been kind to the old fella.
