Tropical Fish Keeping - Aquarium fish care and resources

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fishkid 10-13-2009 03:32 PM

Sick Discus?
I noticed that my discus fish in my 46 gallon bow front tank has a disease that looks like a thread of slime with a white dot at the end. There are several of these things on each side of the body, mostly on the upper half. Also, in one small spot, it appeared as if the fish's body slime was coming off. I have had the fish since August, and have not introduced anything new to the tank since then. Yesterday, the fish appeared perfectly healthy, with none of these threads, and was actively swimming and eating. Today, it is not as active, but otherwise appears to be okay except for the threads.

The other fish, 3 koi swordtails and 7 cardinal tetras, don't have these strange threads on them. Ph is 7.4, Ammonia & Nitrite are 0, and Nitrate is around 10. I do weekly water changes of 50%. I feed the fish with flakes, pellets, and freeze dried Artemia. There are also a few zebra nerite snails added over a year ago.

What could this disease be? The closest thing I could think of was fungus, but it doesn't look much like fungus. Searching on multiple fish sites also failed to yield an answer.

Twistersmom 10-13-2009 07:57 PM

Sound like some type of bacterial infection. I don't know much about Discus.
I know they are said to be sensitive and require more water changes than most fish.
I would try daily water changes and watch for improvement. Hopefully a Discus keeper will come along, that knows more than I.

fishkid 10-14-2009 02:55 PM

Now the threads are more like dots, a bit like ich, but not ich. There are less of these threads/dots today.

johnnyjiron 10-28-2009 02:02 PM

raise the temperature to 84 degrees..

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