Ok, I got 3 little tiger barbs yesterday and one is chasing two other ones. The other ones are swimming sporadically and nose pointed down, like at a 45 degree angle. I've read this could be air bublles in their stomach or swimbladder or a breeding thing. Does anyone know what is wrong, should I take these two back? They weren't doing it at the pet store!
Tiger Barbs swim nose down periodically. Typically they do it after they eat - sometimes for a long period of time. I also see mine do it once in a while during the day.
3 Tiger Barbs are going to be nippy. 6 or more is recommended to keep agression down. Even with my 10, they are constantly trying to figure out who is the alpha in the group.
What size is you tank? What other fish do you have?
I agree with all of the above. I originally panicked when mine first did this but I think it is a dominance thing.
Does it look like this?
Be careful not to overfeed them though. As far as I've seen the whole 30 second rule is completely debunked when dealing with Tigers. They eat FAST and as much as is available!
My tiger barbs do something like that at night when its dark. Ill get a flashlight when its dark in room and look in tank. They are almost nose down like there in a trance or something. Almost like their asleep, but there not.