[davefrombc]

Read about work on a vaccine against ich in the Vancouver Sun today. Here is the original one in the Los Angeles Times the sun one referred to.
A lot of fishy people would be happy to see it developed .
Vaccine developed to save fish from deadly parasite - Los Angeles Times

 

[Ursus sapien]

that would solve some problems! of course, knowing humans, over-crowded tanks would become even more common.