Stingray problem?

[Caveden]

My ray’s been acting weird these past two days. It gets terrified of everything more often and would dart around the whole tank. It stopped eating today and I’m quite worried as my previous ray died after it stopped eating. Water parameters: 0.05 nitrate/ nitrite, no ammonia. Is it just stressed out? Or is it some health issue? Posted a pic to determine if anything is wrong

 

[flyingsaucer owner]

What other fish is it kept with?
It looks to have a few nips along its disc edges.

 

[Caveden]

What other fish is it kept with?
It looks to have a few nips along its disc edges.

My ornate bichir mistook the rays disc for food. Ate one piece of prawn today. Much less than before…

 

[Gpdriftwood]

Looks fine in that pic. Like saucer owner suggested, any chance it's getting piced on by a tankmate?

 

[Caveden]

Looks fine in that pic. Like saucer owner suggested, any chance it's getting piced on by a tankmate?

Nope. Those two nips were from quite long ago.can’t see to find the reason. It swims quite irregularly and different from before however. that’s all I know.

 

[Gpdriftwood]

Any eating is good... hopefully just temporarily stressed man.

 

[Caveden]

Any eating is good... hopefully just temporarily stressed man.

Oh. Thanks. Just paranoid from previous ray death. Never raised a pup to adult before, find stingrays the hardest fish to raise

 

[Caveden]

Now there’s something going on. Is this a fungus growing in the tail? Been like that for a week, and the wound seems to be getting larger. Should I add any medication

 

[Preacher]

Now there’s something going on. Is this a fungus growing in the tail? Been like that for a week, and the wound seems to be getting larger. Should I add any medication

View attachment 1464858

I would separate him from anything else and treat the tank. What temperature do you keep him in?

 

[Caveden]

I would separate him from anything else and treat the tank. What temperature do you keep him in?

I’m not sure what the temp is. I live in Singapore where it is always summer so I don’t bother buying a heater. It still reacts to food, but does not eat it.