Jun
Aquarium Advice Regular
I'm glad you found Maracyn, that's what I was going to recommend for him.
Doubletails are prone to swim bladder issues, unfortunately. It has to do with the way they are bred and their genetics. The reason doubletails are the way they are is because the genetics mirror the bottom part of the body to the top - thus the double tail lobes and the large dorsal fin. Unfortunately, it can also lead to short-bodied-ness, for whatever reason, which messes with the swim bladder and spine.
This often happens when a clutch of doubletails is produced by repeatedly breeding doubletail to doubletail (compounding and breeding in their various issues), instead of doubletail to singletail (alleviating spine and SBD issues). Responsible breeders will only breed DT to DT once before breeding back out to singletails, and others won't do it at all.
I hope you can get this guy's issues figured out, but genetics may be against him in this case. Hopefully his condition is curable!
Doubletails are prone to swim bladder issues, unfortunately. It has to do with the way they are bred and their genetics. The reason doubletails are the way they are is because the genetics mirror the bottom part of the body to the top - thus the double tail lobes and the large dorsal fin. Unfortunately, it can also lead to short-bodied-ness, for whatever reason, which messes with the swim bladder and spine.
This often happens when a clutch of doubletails is produced by repeatedly breeding doubletail to doubletail (compounding and breeding in their various issues), instead of doubletail to singletail (alleviating spine and SBD issues). Responsible breeders will only breed DT to DT once before breeding back out to singletails, and others won't do it at all.
I hope you can get this guy's issues figured out, but genetics may be against him in this case. Hopefully his condition is curable!