sinjindog

Can anyone ID this fish for me? It was sent by a friend who has had a community tank for a number of years and according to him all of a sudden two of these ate everything buy a bala shark and a gourami. Everyone had co-existed for at least 2-3 years. TIA edit, figured it out, I think it's an Abramites hypselonotus (headstander)

Many thanks for the input guys. It's been a few years since I started a new tank so figured I would check. I'll give the new water and mature filter method a go.

Hello, I've got a question for the experts here. I have a 55 Gallon Cichlid tank running two eheim 2224 Canisters and I am starting up a 37 Gallon for a different room. Anyway I have another 2224 Canister than I am going to use on the 37 but I'mthinking about taking one of the established 2224's off of the 55 and replacing it with the new one, and putting the established 2224 on the 37. The canisters are full of ehfisub so they have lots of bacteria. Also next water change I'm going to put the water I take out of the 55 into the 37. If I do this do I still need to cycle the tank or should I just add ammonia for a few days and see if I get a spike? TIA