Well sadly he didn't make it idk what happened he came back and looked really good up until today. Turned all pale again and had red blotches on his head and dorsal fin. started churning and layed upside down. I quickly set up a salt dip and put him in a smaller tank and he held on for a few hours and just took a few big gulps and rolled. Put him under the air bubbles for a bit came back and rolled again. Idk what could have caused it in a 24 hour time frame. He went from healthy looking again to dead so quick. The other fish is perfectly fine no issues at all through out this whole ordeal. Any idea what might have happened? Sucks so much