Tropical Fish Keeping - Aquarium fish care and resources

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twoinchina 10-07-2007 06:30 PM

Oscar rotting fin

We have an albino oscar around 3 inches long in our 50 gallon tank (along with other fish and another oscar).

2 weeks ago we noticed that his top fin was looking rotten. The skin in between 2 or 3 little fin bones was gone and the meat at the base of the fin looked like it was burned.

Now, we watch our fish for signs of disease all the time, so the assumption is that it occured overnight, because when I was feeding them in the evening the previous day there seemed to be nothing wrong.

I wonder if the water heater is the culprit, cause it stopped working shortly after the issue with the oscar and we had to get a new one. (But I never heard of heaters burning the fish).

The LFS advised us to fish the oscar out once a day and rub in the medication at the wound (intensely yellow stuff, no idea what it's called in English - we live in China). We did so for a couple of days, and the spot started looking better, but he was so stressed out that we decided to just wait and see.

We added the same medication to the water in the tank (LFS advice) and it cured our second oscar's scale issues. So apparently it's some good stuff.

But the albino still has the problem.

He eats and swims around no problem, though he stopped eating for a day or two after being fished out and treated.

Any advice would be appreciated.

Nitrates and nitrites are normal, we checked, PH is ok too, water temp at 29 celcius.

Lupin 10-07-2007 07:06 PM

Pictures please. Either finrot or the heater (without a heater guard) indeed burned its fins.

twoinchina 10-07-2007 08:56 PM

Photos of oscar and powder meds
Attached are photos of my albino oscar's fin issues and the powder medication I've been using (it's Japanese made, they say the exported stuff here is better than local meds).

Note: Unmark Disable BBCode option for photos to show up.

Lupin 10-07-2007 09:06 PM

I'd treat the damaged fins with Melafix if I were you.:?

twoinchina 10-07-2007 10:24 PM

But what is it?
What does it look like? Like a burn? Or fin rot?

Thanks a lot

Lupin 10-07-2007 10:31 PM

Re: But what is it?

Originally Posted by twoinchina
What does it look like? Like a burn? Or fin rot?

Thanks a lot

Not finrot. The fins and the skin around the dorsal fin area look burned to me.

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