I recently moved my fish from my old aquarium to my new 55 gallon corner. I used the old filter media and everything has been fine for a few days. Today I added some new fish. At first everything was fine and my pack of make guppies and endlers were their normal curious selves, investigating the new fish. But after literally about 5 minutes, ALL my guppies and endlers are lethargically swimming in the back part of the tank, gills pumping hard. One showed symptoms of bloat and I quarantined it with aquarium salt.
What happened!? I have never heard of a disease coming on so rapidly, and affecting all the members of one species (all my other fish seem fine). Is it related to the new fish? Help is appreciated. I've had these guppies and endlers for a long time. Thanks!
What happened!? I have never heard of a disease coming on so rapidly, and affecting all the members of one species (all my other fish seem fine). Is it related to the new fish? Help is appreciated. I've had these guppies and endlers for a long time. Thanks!