Looks like you're having the SUPER DUPER fun issues I am with a couple of my boys.
I finally decided to say SCREW IT and got them both on Maracyn 2.
They both had curtain-tail (where it curls up and over on the bottom of his tail and curls over on the dorsal fin). So, for that I decided to get them on MelaFix. Because I wasn't aware that you need to dilute down MF by 1/5 for bettas, i overdosed them. (full strength doses w/no water changes in between for 3 days in a row
![crazy :crazy: :crazy:](/images/smilies/ipb/crazy.gif)
)
After I figured out the horror of what I had done, the boys were in pretty rough shape. so.... of course I did 100% water changes on them both adn they seemed to be coming around. then, they both started in with the shredded tails. I still don't know for sure if they were eating it, or what, but it looked like they had been caught in a paper shredder.
I have now switched to using only Stress Coat for dechlorinator. That not only adds some slime benefit, but it also dechlorinates the water. I have been dumping in some salt after each water change, and they're both on M2. Archie is showing marked improvement since I started all the above on top of water changes every 3 days.
Harvey hasn't improved much yet, but his problems haven't gotten any worse either.
You might want to try the routine I'm going through - it seems like it's doing Archie at least some good. We shall see.