Red Tailed Black Shark Question

[Dark_Lenne]

Hi there.

I have a friend who owns a young Red Tailed Black Shark. I have noticed that it tends to swim upside down. It rests on its dorsal fin. However, it doesn't seem to be struggling, like with a fish in distress or a fish with a damaged swim bladder.

It looks to be in total control of what its doing.

My question is, has anybody else with a RTBS noticed similar behavior? Should we be wary?

Thanks in advance.

Dark Lenne.

 

[Tokis-Phoenix]

When you say it swims upside down, does it do this a lot (does it do it with its head to the ground, or quite literally swims upside down)? It sounds like a swimbladder disorder.

 

[Torrean]

it's just fine. RTBS and RFBS swim like that all the time =) as long as he appears to be in control and able to keep his balance I wouldn't worry.