Hi Elina,
Sounds like those little capensis were pretty lucky to find their way into your tank.
I think before you consider treating the male with Diamox you should try evactuating the air from the pouch also know as burping the pouch. If the gas re accumulates then it would be advised to treat him.
I recently treated and cured a male with tail bubbles by medicating with Diamox orally. I really like this method because it does not require removing the seahorse form it’s tank. If you are interested Pete or I could post the instructions for you.
Another option possibly worth trying……. since capensis are pretty small and your tank is fairly tall would be to keep the male submerged at the bottom of your tank in something like a critter keeper for several days.
Leslie
Ocean Rider, Inc. is an Organic Hawaiian-Based Seahorse Aqua-Farm & Aquarium that Follows Strict Good Farming Practices in Raising Seahorses and Other Aquatic Life.
