[FuelingFire]

Hello everyone. I have a 55 gallon tank. With 6 kuhli loaches, 1 cory (lone survivor of ammonia Spike a year ago.) and a rainbow shark, along with 5 bloodfin tetra's I did have 6 tetra's one died about 2 weeks ago. and i been noticing that 2 of my bloodfins are Losing scales, and aren't really eating. All my other fish seem fine, I do weekly water changes, and the water perimeters have been stable Nothing has changed. I do notice my Rainbow shark chases my bloodfins, but never for long and normally the shark goes back to doing his own thing. I have been trying to get rid of the shark. due to the aggression, and i don't have an extra tank to house him in.

Could it be that the Shark is the cause of the loss of scales and (death of 1 bloodfin) or is it a Disease? also i notice my tetra's aren't swimming about like they use to. they tend to stay in one spot. but they aren't schooling like they would if they were stressed.

I asked a friend of mine who said it could be the shark, but i want to get other opinions.

Thanks for any help or advise you can give.

 

[nolfan]

It could be aggression from the shark. How are the fishes' behavior at feeding time? Bloodfins missing scales can be either from within their group or from the shark. I'd do a big water change of 50-75% and see if the tetras perk up. They might be staying in one spot due to territoriality from the shark. What're your water stats?

 

[FuelingFire]

Sorry for such Delay. I recently Moved my Tetra's and Kuhli loaches to my 40G breeder planted tank. The shark is in the 55 by himself,

My water perams: are ph 7.4 ammonia 0, nitrite 0, Nitrate 10, But My water perams Haven't changed.