Hi! I was thinking about upgrading my bettas' tanks! They are currently in 1 gallon cubes, and they seem happy. They also have heaters and fake plants in there. I do 100% water changes every week, and they get fed 2 pellets every morning. Except for the one who prefers flakes!!

I wanted to get them all 2.5 gallon tanks, just so they could swim around even more and be even more happy/healthy. The one does have fin rot that's not looking good, I almost think he might be nipping at his tail. I am currently using melafix, but I think I'm stopping after today because the medicine isn't meant for long term. I am also currently fish-less cycling my 10 gallon tank and getting ready for it to be stocked in the next couple weeks or so! So do you think i should wait until my 10 gallon is settled down to start upgrading?! And also, should i get maracyn 2 (i believe its called) for this fin rot? Thanks!