Big big problem... My whole 55 gal community is affected by tetra disease. They've been dropping dead one by one! Water levels are normal to prove it. It's really saddening to see half my community dying. The dead ones get caught on the filter and I only catch my eye on them after a few hours so sometimes I don't find a single skin on them left. Some are still affected and still alive but probably dying slowly. It's really saddening! I know there isn't any cure for this disease but what else can I do? I can't afford to replace them. Is there a chance my Pearl Gourami could get affected?