02-04-2010, 12:46 AM
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Yes, Pasfur, if it were up to me I'd be moving the fish back to the main tank unless there was some other logical reason not to do so. Stress means a lot, especially when a fish is already sick. Stress weakens the immune system which makes it harder to fight disease and illness issues. If this is indeed lympho as we suspect, it could turn up in another species months after the current fish have returned to normal. Once exposed the virus runs its course, but then presents itself differently according to the individual fish and its immune system as well as according to species. Unfortunately, at this point in time, there is no treatment for it, no cure for it, no preventive for it. A virus is a virus, ever mutating to ensure its own survival.
I would like to add that garlic in the diet may help a little bit. Garlic will help give a little boost to the immune system which helps the fish to fight the virus. If you can get the fish to eat a garlic laced food, or find them something they like that contains garlic, thats a plus. Also watch the water chemistry, not just ammonia, nitrite, nitrate, and pH, but in particular calcium & spg/salinity. Calcium levels that go too low or too high will cause further issues for the fish and will weaken the immune system further, likewise with salinity. If you can keep all of that in check you should notice all of a sudden one day the lumps begin to shrink and eventually disappear.
Best of luck to you and your fish, let me know if you need further assistance or notice any new symptoms in any of the fish...