Have you tried asking your vet? My vet is not an aquatic vet but I took some printed pages from Pete Gwonjna's seahorse training course explaining diamox usage. He wrote me a script and I took it to my local pharmacy and they filled it. I had to tell them my seahorses name and birthdate but I have it.having trouble getting my hands on diamox, im in Mass willing to travel and buy few tablets, i have catheders...if this isnt allowed my apologies and delete or instruct me administration. new to this and ty.