Whitespot / ich on veteran clown
My oscellaris clown of 7 odd years I am sure has whitespot / ich. It looks reasonably developed and certainly not just starting out. I think it came from the coral beauty I added weeks ago.
In any event, the coral beauty has started to do the 'rub against a rock' thing, so it seems pretty clear that we are dealing with whitespot / ich, but I cannot see any visible signs of it on the fish itself.
My other oscellaris clown seems fine and is much younger in this tank, more than a year old definately.
Historically I haven't really seen much that makes me comfortable using a chemical and I have left fish in the past to shake off (so to speak) whitespot / ich themselves.
My question is, is it likely that the clown that's suffering it is going to be strong enough from an immune point of view to beat it on it's own? He's been in my tank for 7 years and been though it's own fair share of outbreaks including two or three whitespot / ich outbreaks in the past, so he should be tough enough?
I'm aware that clowns only live about up to 8 or so years in the tank so I'm juggling with the decision of leaving it all alone and hope he fights it off given his age, or trying to remove mainly him but all of them into a hospital tank for a copper treatment.
The problem being my hospital tank is small, only about 30 litres or so, so having those three fish in there will be tight and possibly causing more stress which may knock one or more over the edge.
Outside of the visual aspect of the problem he seems fine and is eating as far as I am aware. It's been a few days with it and it doesn't seem to be getting worse.
Of coarse getting them out will be impossible without removing all the rock which I want to avoid.
He's the only original fish left so I do have a soft spot for him.