I know the immediate answer to this is “YES! ALL BETTA DESEREVE AT LEAST FIVE GALLONS!” but my situation is a bit tricky.
I’m a college student, which means I’m home during the summer and winter breaks, so my fish, Pontus Rex, travels with me. I currently have him in a 2.5 gallon tank, but his fins are a bit frayed, and I know he would be much happier and healthier in a 5 gallon. I've been reading about cycling a tank and see that it takes anywhere from 4 to 8 weeks. This wouldn't be an issue over the summer, as I don’t go back to school until August, but then when I travel back, I would presumably have to scrap all that progress.
Would it be possible for me to keep his old water in a jug of some sorts and then just add it back to the tank once I was back at school, or would that ruin the ammonia and nitrogen levels?
I would really appreciate some advice because I’m worried about my little guy. Pontus, “Ponty,” is very happy; he made a bubble nest just the other day. Still, I worry about those fraying fins and that he’s not in the best condition he could be.