You will be very hard pressed to find tetracycline in a fish store right now There's all kinds of problems with people buying it for themselves and the manufacturers are not able to distribute it. I know you can find it on ebay...that would probably be your best bet
I had to lower the water in his cup... and change his water, puting the same dosage of Melafix as before...
unfortunately...
REALLY unfortunately...
after a few strong last struggles to keep a-breath, he died I'm going to keep him in the cup until 6 today, incase i notice any movement. I tried to get him to move without shocking him, and absolutely no movement, or motion from the gills...
like i said before, unfortunately this had to happen. I had him for too long
Thank you so much for all the information you've providing.