Oscar With Fish Fungus?

So, I have had this Oscar for about 7 months now, and as you can see she has gotten quite large, I am planning on getting her a new tank, but I have found this fungus that has shown on her side. I had recently taken out 3 corys which showed similar fungus on their faces and one that had it on its whole body, in fear that they would pass it to the big one.

Well they did, and good thing I guess because it made me check my water and find that my pH is 6 so I am going to get pH up right after I post this. Now what I need is a definitive yes or no, is this treatable fish fungus and what would I use? I am going to get a small 1-2 gallon bowl and put her in it with an air hose during treatment.

Just need to know what to get. PLEASE RESPOND ASAP!!!

Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 5ppm
Ph: 6

Is it fluffy, like cotton wool? If it is, it is most probably fungus and should be treated with a fungal med. If it's not fluffy at all, it's not fungus and I wouldn't treat it with anything just yet, rely on good water conditions and monitor closely.

Don't put the oscar in a small bowl for treatment; it'll be terribly stressful and such a big fish could pollute such a small volume of water causing ammonia burns (or worse) very quickly. Whatever the problem is, whatever's causing it will be in the main tank anyway, so you'll want to treat that too.

I see no fungus whatsoever so some clearer description would be excellent.

And no way should the oscar go in that bowl, would probably look along the lines of potted shrimp.

It would be a lot easier, a lot less stressful and definately more beneficial to treat the main tank, as fluttermoth said, the infection if there is one, will still be in there.

Do a large (75%) waterchange as soon as possible and see if she perks up a bit, replace with warm, dechlorinated water.

DO NOT add anything to try and alter the pH, as is now the normal advice, a lower or higher than average, stable pH is much better than a flip flopping one.

hanny93 said:

DO NOT add anything to try and alter the pH, as is now the normal advice, a lower or higher than average, stable pH is much better than a flip flopping one.

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+1; forgot to mention that; well remembered, hanny!

A pH of 6 is nothing really to worry about anyway.

Aha quite proud of myself for remembering it if im honest! And yeah pH 6 isnt too drastic, a little low but a fair number of species adapt quite well to it.

It is fluffy like cotton, but more like fleshy cotton, not as just a puff ball, but fleshy bits hanging off, it could just be a severe injury but since other fish had it I am skeptical.

Well, treat the whole tank with an anti-fungal med and you should be fine; at least your water quality is top-notch, so that's one thing you don't have to worry over
I do wonder whether it's an injury though; it's very, very common for injured fish to develop fungus as a secondary infection; your oscar could have injured the cories (corydoras are part of the natural diet of oscars in the wild, so it's great you took those out!) and oscars are always scraping and bashing themselves on things. Have you checked your tank over for any sharp edges? Got a heater guard?

I do hope she gets well soon

Yes, turns out she got excited and scraped herself on the slate in the tank, I am going to try and find something to be able to prop it up farther out so she can get back there again. Will post when have done.

Just to make clear, she just injured her side and it is healing up fine.

Oh, that is good news; thanks for the update