please, can someone help? Fish died, fear another will die.

  • We are currently upgrading MFK. thanks! -neo
I read your other thread and it says the nitrate level was about 40ppm. I hope you did plenty of water changes to get your parameters in check. Now, if you have a hospital tank, now would be a good time to move them. If you're treating the whole tank then do a large water change and start treating with Macryn 1 and 2. Adding salt wouldn't hurt either. Are your fish still eating?
 
fish are still eating. I've moved the surviving blood parrot into a sick tank, and added salt. yes, did two big water changes, and nitrate is back down to 5 ppm. I need to find a place to buy the Macryn.
 
The treatments are going to be very similar over the board for what you are seeing and ich. I had moving white worm like critter on angels that look very much like what you are seeing.
 
I hope this blood parrot pulls through, I've had it for a long time. what ever this is, it opened a big gash in the lip of the fish, and there is white cottony stuff coming out.
 
No, looks to be bacterial:

Flexibacter columnaris (Columnaris disease or Saddleback disease)

  1. Gram negative slender rods (3-8 microns)
  2. The disease is a serious disease of young salmonids, catfish and many other fish.
  3. This is a highly communicable disease. Lesions usually first appear as small white spots on the caudal fin and progresses towards the head. The caudal fin and anal fins may become severely eroded. As the disease progresses, the skin is often involved with numerous gray white ulcers. Gills are a common site of damage and may be the only affected area. The gill lesions are characterized by necrosis of the distal end of the gill filament that progresses basally to involve the entire filament.
  4. Flexibacter columnaris infections are frequently associated with stress conditions. Predisposing factors for Columnaris disease are high water temperature (25°C-32°C.), crowding, injury, and poor water quality (low oxygen and increased concentrations of free ammonia).
 
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