redmarks on fish

[tonska88]

hey i was woundering if any 1 can help me i have a cold water tank with:

2 gold fish
1 surbumkin
1 ghost carp
1 koi
1 starlet sturgen

one of the gold fish and the shurbumkin has red marks on there fins and its worse on the gold fish ( along its back) is it the starlet sturgen biting them or is it some sort of illness

any ideas would be great

hope u can help

thanks tonska

 

[MinnowMagnet]

one of my carp had a red mark on the back of his dorsal fin and it went away after a week.

 

[blurock]

Certainly not the sterelet. I would guess you have some kind of disease running through there. It's going to be hard to work on curing it with the sterelet in there. I would suggest taking the effected out and placing them in a QT tank, ad salt in increase temp. Or even use some meds once they are away from the sturgeon.

 

[WattaMelon]

How big is your tank, and how good is your airation? I'd need a picture to be sure, but it sounds like blood is being rerouted to the fins of your fish in an effort to collect more oxygen. Add an airline and do some small water changes (10%) for now, but you might want to think about decreasing the amount of fish you have.

 

[justonemoretank]

What are your water parameters? This sounds like septicemia. Do the fish also have red spots on their body (maybe around their heads)? Septicemia is bacterial, and would be treated with Maracyn 1 or 2, but is related to poor water quality, so if you params are good, and always have been that means it's less likely that it is septicemia. Please provide actual numbers.