Hoping to get some advice on what might be happening in my tank...
I received some new Pumpkinseeds and Bluegills a few weeks ago and everyone has been looking great until two days ago when I noticed one of the smaller Pumpkinseeds (about 1.5 inch) hiding during feeding time. I looked closer and noticed its right fin was bright red and looked tattered. I assumed it was an injury from bullying and moved him out of the tank into a separate 20 gallon for quarantine. The next day I noticed another Pumpkinseed hiding with the same red tattered right fin and moved him out too. I treated both with salt hoping to see a good recovery. This morning the first Pumpkinseed removed was dead, and the second isn't looking good. (photos attached) My biggest fear is that this could be something else-Hemorrhagic Septicemia? I am seeing some slight red on another small Pumpkinseed's fin. I've never dealt with Hemorrhagic Septicemia...would it only appear on one fin at a time? I know it can be really aggressive so any advice on whether you think it is and treatment will be very appreciated. I attached photos of the remaining Pumpkinseed in quarantine to help.
The tank:
(This is a holding tank for fish that will be moved into a display tank)
350 gallon
9 Bluegills ranging in size from 1.5 inch to 3 inch.
8 Pumpkinseed ranging from 1.5 inch to 3 inch
PH 7.2 Ammonia 0 Nitrite 0 Nitrate 5.0-10 before water changes.
Bio tower along with UV
Entire tank recently treated with Prazipro after new fish were introduced, if anyone has recommendations on other preventatives-anti bacterial treatments, preferably ones that don't affect the biological filtration, that would be great. Don't want to stress the tank out too much, but wondering if I should just treat the entire holding tank to be safe.
Thank you in advance
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Edited by ccarceo, 09 February 2016 - 11:40 AM.