My goldfish is the common ones you'd find from fairs, and just a week ago we found it having trouble swimming (having to sway side to side more than usual) with white flesh trailing behind where its tail was supposed to be. We found the others sometime chasing after it to nip at it, so we took it out into another smaller tank quickly. After a week or so, it doesn't have the white flesh anymore, which is a good thing i guess, but its tail (or what's left of it) has turned black (it was originally orange), and its starting to spread towards its body as well. I should specify that it's entire body is turning black starting from the tail, not streaks or lines of black. I've heard its because of ammonia burns or that they are healing so i left it alone, but i'm getting worried. It has also been swimming around and around the tank for the first few days, but lately it has taken to swimming at one corner only, which coincidentally is the direction of its previous tank. It can't see its previous tankmates, the tank is opaque. I am also hesitant about changing the waters too frequently because I'm afraid it stresses it out. But it is eating food.
(I apologize for the picture quality, it won't stop swimming) If you squint at the second picture, you can see the beginnings of its healing(?) tail. I have a video but i don't know how to attach it, it seems to only allow pictures.
So i want to ask:
1) Is my goldfish getting black a sign of it healing or is it something more serious?
2) Should I leave the water level low for it to surface easier?
2) Should I continue leaving it isolated or should I dump it in with the rest? (My mom says it'll die of loneliness)
3) Is there anything I can do to stop it from swimming so erratically? Or is that okay?
Thank you, I really want my goldfish to be fine.
(I apologize for the picture quality, it won't stop swimming) If you squint at the second picture, you can see the beginnings of its healing(?) tail. I have a video but i don't know how to attach it, it seems to only allow pictures.
So i want to ask:
1) Is my goldfish getting black a sign of it healing or is it something more serious?
2) Should I leave the water level low for it to surface easier?
2) Should I continue leaving it isolated or should I dump it in with the rest? (My mom says it'll die of loneliness)
3) Is there anything I can do to stop it from swimming so erratically? Or is that okay?
Thank you, I really want my goldfish to be fine.