I picked up a used 40g tank a year ago that was already filled with fish, inverts and corals-- among them was a sand sifting star. I read that they really prefer larger tanks, but the previous owner had kept it for over a year and they seemed conscientious about every other part of their setup so I kept the star. I monitored him closely for signs of starvation of failing health but he seemed to keep on going strong.
Recently I noticed a tip of one of his legs looked short, and I wondered if I may have accidentally got him with the algae scraper. Today he emerged from the sand with bright white patches that look pretty dire. I didn't see this kind of discoloration even 2 days ago.
Is there any chance it's something that will pass, or is this the end? If so, what should I do with him to humanely remove him to keep the rest of my tank safe?
Is there a chance that he'd survive if I re-home him to a much bigger tank, or has that ship already sailed?
Recently I noticed a tip of one of his legs looked short, and I wondered if I may have accidentally got him with the algae scraper. Today he emerged from the sand with bright white patches that look pretty dire. I didn't see this kind of discoloration even 2 days ago.
Is there any chance it's something that will pass, or is this the end? If so, what should I do with him to humanely remove him to keep the rest of my tank safe?
Is there a chance that he'd survive if I re-home him to a much bigger tank, or has that ship already sailed?