One of my 6 rummy-nose tetras (tank is listed in my signature) has stopped schooling with the other 5. In my experience, this is not a sign of a well adjusted rummy.
It hangs low at the back of the tank, hardly moving around at all. Sometimes its breathing seems labored. Sometimes it forms up with the rest to eat, other times not. There are no signs of ich or obvious illness with any of the fish, and water parameters are all good.
Anyone witness this type of behavior before? Anyone understand the cause?
It hangs low at the back of the tank, hardly moving around at all. Sometimes its breathing seems labored. Sometimes it forms up with the rest to eat, other times not. There are no signs of ich or obvious illness with any of the fish, and water parameters are all good.
Anyone witness this type of behavior before? Anyone understand the cause?