as seen in the more crisp image, his fins are more round. in the bottom one, his fins are sharper and it’s hard to see but in the daylight, I can notice some ever-so-small black tips on his fins, and also a minor scratch on his eye. there isn't any sharp decor in this tank, just a cave as seen in the second image. (images were taken 2 days apart) I’m having to hold him up since he won’t move at all until I actually touch him but then as soon as I let go he just sinks to the bottom while barely moving his fins. I’m currently treating for ich with Ich-X, salt, and high temperatures (82-85°F) for about 5 days now and this behavior started 2 nights ago. He used to swim all around the tank up and down all the time but now this happened out of nowhere. There are no signs of ammonia, no nitrites, and about 15-20 nitrates. Any help is greatly appreciated!!
15g column (temporary/quarantine)
2 10g filters (no carbon just movement)