Please help sick fish

Devzev · Jul 12, 2014

I have a 2 iridescent sharks. About 8 inches now. One seems to be sick/ dying The passed several days i noticed his lower abdomen seem to be bloated and his upper seems to be shrunken in. All other fish seem ok. No recent changes to stock or tank. Water parameters are normal

Please let me know what it may be etc.....

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Devzev · Jul 13, 2014

Is it probably Swim bladder disease?

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deeda · Jul 13, 2014

Can you post your exact water test results for pH, ammonia, nitrite and nitrate?

What size is the tank and what other fish are in there?

Have you had these two fish for about the same amount of time? If so, how long?

What are you feeding them?

It may be helpful if you can post a clear picture of the fish for us.

Devzev · Jul 14, 2014

Ammonia 0. Nitrite o. Nitrate 20. Ph 6.8.
Had the irridescent shark both for about 6 months
Mainly feed nls pellets with occasional frozen krill
125 gallon
several angel fish
4 medium bala sharks
2 clown knife fish
2 iridescent sharks

30 percent water change weekly
Fx6 canister filter

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