Sick fish! White picture over scales...?

Our 3 year old oscar has developed a bald spot on his person in charge, and he also has a kind of white cover on him. He is in a 55 gallon cistern, and we do regular tank changes, and we are wondering what disease he has so we can treat him right absent. What kind of disease does he have, what kind of pills could we use to treat it, and where could we get that medicine. Thank you so much for your give a hand!!
Go to a vet.
From what I can transmit it sounds like either Ich or Velvet. Try getting something called Pimafix and Melafix. Take out the carbon within the filter and follow the instructions on the bottles. Pimafix is an antifungal, Melafix is an antibacterial. Dosing with these two usually cures my fish of most anything they hold. If its velvet its going to be difficult to cure. I've also heard good things about Quickcure for treating Ich. Check out the two links below for more info, Aquarium FD have good pages on fish diseases cures and info and will be of more detailed help them I am.

http://www.fishdeals.com/fish_diseases/i...
http://www.fishdeals.com/fish_diseases/o...

Edited to make the addition of: Oh yes, I forgot to mention, melafix also helps repair torn fins, wounds and stuff. It could help heal that spot on his manager since it sounds like a small wound where he got excited and bash into something at some point. You can get Pimafix and Melafix at a Petco or petsmart.
Listen to Tikitiki.

I suspect that inspite of your wet changes you still have water aspect problems that led to your fish getting infections.

An adult Oscar in a 55gal requirements huge water changes.

Ian
this is called white spot u can get this stuff in a bottle from your pet shop that u drop into the container each day to get rid of it, you enjoy to do it fast coz it will spread 2 ur other fish (if u have more) and can kill it eventually x
Answers:    I think it is called ick. Go to the pet store and they can give you something to put into the marine to clear it up. They can also tell you how to prevent it the future.

I hope this helps.
Brenda
There is a website called Gold Fish Sanctuary, Im not certain if that is the exact website so you can google it, it helped me diagnose my fish next to septicemia and then i got some herbal medicine for him at petco.
About the bald spot on his head, probability are your fish got excited or scared over who-knows-what and he bumped his head on something. Then a few of his scales fell bad. If that's the case, then you really don't need to verbs about it.

If it looks like little pin-pricks or "dents" then within is something that is really stressing your oscar. It could either be a bad diet, doomed to failure water, a small tank (which is associated with impossible water) or un-suitable tank mates. You need to address the problem and fix it. And execute lots of large water changes.

If your fish have ich, then you don't need to buy medicine.You single need to turn the temperature up to around 86 F and add some aquarium saline.
It is a fungus..
Get anti-fungal meds at wal-mart or any other
place that sells fish & supplies.
Looks similar to a fungus infection... my fish got one a while ago.. just go to resembling petsmart or somewhere like that and they should be able to get you the stuff that fixes it up. fitting luck!
What you're describing is not ich/white spot, and does not sound like a fungus any. That's the catch all diseases for all fish problems posted here..

Ich looks brackish sprinkled on the fish.

Fungus infections look like tufts of cotton, and even then, it may not be a true fungal infection you're seeing.

No where do I see where on earth you say there's "white spots" or "fuzzy/cottony" growths on the fish. So, I would not recommend using an ich med or a fungal med for treatment.

I'm thinking one of two things here, maybe even a combination of them.
Bald spot on his head-what color is it, and what's it look like? Do you see any pits or holes starting surrounded by the head area(these will be larger areas not the small pinsize sensory pits on their face/head-see photo in link)? Oscars are prone to hole surrounded by the head disease. Generally, that's caused by high nitrate level and also a poor diet. Secondary infections to that would be a hexamita infection(a protozoan), which is carried in the intestines of all fish. When the fish gets stressed, the hexamita helpful of takes over. But hole in the come first, contrary to what some say, is not caused by hexamita. The hexamita shows up as a minor to the HITH disease. I stress that, because you can generally treat HITH disease by increasing the water changes and keeping the nitrates down lower than 20 ppm, and feeding a varied diet which does NOT include feeder fish. Don't waste your money on the medication that claim to cure HITH disease. All it is, is metronidazole which will kill the hexamita, but the hexamita isn't the source of the problem.

http://www.flippersandfins.net/HITHartic...

The white cover on the fish, this could be several things. My first thought is a columnaris infection, which is bacterial. Here's a link with more info on that:
http://www.flippersandfins.net/Flexibact...

Now, columnaris tend to show up in tanks with poor river quality as well. So, it's possible you could be dealing with both HITH and columnaris, or it could freshly be a columnaris infection causing the "bald spot" on the fish as well. Columnaris infections can also impose white or red sores on the fish as well. Columnaris needs an antibiotic for treatment, I usually recommend Maracyn Two, which you can draw from from most pet stores.

Or, it could be he just scraped his head, and the white film is newly from poor water quality. A white cover could just be excess slime coating, which happen when the fish's skin gets irritated. It also could be a parasite problem-parasites irritate the skin, but I would probably lean towards one of the other 2 diseases I mentioned.

A 55 gallon tank is the absolute unclothed minimum for an oscar. I had one in a 55 years ago, and had 2 filter running, did 2 50% water changes weekly, and it was still difficult to maintain the nitrate levels down to the acceptable range. So, not certain on your set up and water change schedule, but from my experiences, I would recommend to form sure you have 2 good filter running(I used the largest Penguin filter and a canister filter) and make sure you're changing out at tiniest 50% of the water weekly-which would be best done twice weekly instead of one 50% change weekly. And, if you do use feeder fish as food, I would propose stopping that immediately. Feeders are not healthy, and will spread diseases or parasites into your cistern. Good luck!
fungus. ask you pet store and they will direct you to the right stuff.
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