Unknown Growth on Raccoon Butterflyfish Need Help!

[Akimbo]

This growth appeared on my fish between last night and this afternoon I have no idea what it is can someone please ID it and tell me the treatment??

 

[wooden_reefer]

If it is reddish it is likely bacterial.

I like peeing, just that the ammonia concentration varies.

If you have just drank a lot of water and have peed before, the ammonia concentration in the amount of pee will be low in your next pee.

Also if you eat little protein the ammonia in your pee will be lower.

But pee general works fine, just not a quantifiable.

 

[Akimbo]

What would one use to treat a bacterial infection in a fish? I am pretty sure I know how she got it too. 30g tanks live rock released a large amount of very very tiny black worms that died off in the tank spiking ammonia and she rubbed against the rocks before we got her out.

 

[wooden_reefer]

<a href=showthread.php?s=&postid=15247323#post15247323 target=_blank>Originally posted</a> by Akimbo
What would one use to treat a bacterial infection in a fish? I am pretty sure I know how she got it too. 30g tanks live rock released a large amount of very very tiny black worms that died off in the tank spiking ammonia and she rubbed against the rocks before we got her out.

Antibiotics in water. Neomycin, Kanamycin etc. These drugs tend to depress nitrification bacteria but will not wipe them out. You would get a little nitrite but no much ammonia. Some antibiotics will wipeout nitrification bacteria, you need to be careful.

The difficulty you may have (I am guessing) is that you have only LR for filtration in the DT, no nitrification in QT. Is this correct?

LR is not a good medium of nitrification for treating fish in QT because typically it has stuffs, besides bacteria, of high biomass growing on it. If these stuffs die during treatment you will have a problem.

You can try using a strong jet of water within the DT, not freshwater from a hose, to wash off anything attached to the LR. I don't know if it works.

You can change water in QT often of course.

You can use Amquel in water in QT. I think Amquel does not deactivate antibiotics.

In the pre-LR days, one can just scoop up some mature gravel in the DT, wrap it in nylon to become a ball, and place it is an HOT box filter and an instant biological filter will be created in the QT.

 

[Akimbo]

She passed this last night before we could get anything.

 

[wooden_reefer]

Have you been using UV? How long had the fish been in your tank?

UV when used properly much reduces this type of external bacterial infection, especially if there is no open wound and for new arrivals .

 

[Akimbo]

She was in a 30g that had an ammonia shock after the LR released a cloud of tiny black worms and she rubbed against the rock and we moved her into our QT but she had already been exposed