I might need medical advice.

[Anthony Nolet]

I've had my yellow bullhead for about 1 year and recently I noticed a dark spot on his back (looked like a bruise) then the next day or two it turned white like fish injuries do then today I looked at it and it turned red within the last 12 hours. It's a little swollen but other than that mark he seems perfectly healthy. Sorry for the long post

 

[houie925]

To enable us to help you as well as we can, could you please provide as much info as possible? Ammonia, nitrite, nitrate, temperature, tank size, tankmates, a photo of the injury.

Without further information, I'd recommend you stop feeding and perform a large WC/gravel vac and daily smaller WCs for a few days. If it's not noticeably healing by then or if your bullhead starts acting sick you may want to consider meds. The redness likely is caused by some infection but as long as it's mild the fish will likely be able to fight it off without meds in pristine water. I'll leave the advice on what meds to use to others, I generally avoid using them if I can.

 

[thebiggerthebetter]

Might wanna familiarize yourself with what's needed to help you: http://www.monsterfishkeepers.com/f...ish-Health-Diagnostics-(Read-before-posting-)

Your post is tiny in the light of this, not long, bro. Surely, a picture is a must.

 

[Anthony Nolet]

He's in a 55 gallon and all the nitrate and ammonia levels are all good. The temperature is around 78 all the time. I do weekly water changes and vacuumings. The only other fish in there are 2 bluegill that came from the same pond he did. The patch of red is about the size of a nickel. I can't upload pictures of it right now though. I changed 20% of the water 7 days ago (might want to do that soon) the two blue gill have been in there basically the same amount of time as he has. The tank is partially I front of my window facing the west so it gets natural sunlight each day. I have two cartridge filters that can filter 110 gallons combined. I clean the cartridges almost everytime I change water and I replace them with new ones after a few weeks . Also sorry for the bad post I was unaware of all the details to include. Anything but a picture that I can include to help out?

 

[Anthony Nolet]

Thank you for helping. I'll keep you updated on him.

 

[thebiggerthebetter]

Thanks for providing this info. It's good but mostly of tangential importance.

We don't even know the size of your bullhead.... and the bluegills at that either. We need to know the numbers (ppm, mg/L etc.) for ammonia, nitrite, nitrate, and pH and we need to know these were measured with an appropriate test kit, not test strips, etc. Pics of the fish and of its wound and of the whole tank are a must IMHO.

During quarantine, have you tried to eliminate the parasites, external and internal, your fish must have come with from the wild?

Diet is also needed to be told.

The tank recent history, in terms of the fishes' well-being, behavior, feeding... and water quality control needs to be conveyed. Have all been eating well and no signs of other problems? Do they flash/rub against substrate/furniture? Do they fight... etc.

Is there a heater? Can it be a heater burn?

 

[Anthony Nolet]

It went away after a few days and everything is fine now.