Hi, I am new to these forums. I just bought 2 new crowntail betas one male and one female(Tough Guy and Cutie Pie) too replace my old beta(Alpha) who has recently passed. Its been a couple of days since i bought the new betas. they live in a 2.5gallon tank, with a seperator. I have noticed a change in the top fin of tough guy, it looks weathered. I don't know if this means he is sick, or if it means that he is stressed, because he has been putting on a big display for his female companion on the other side of the divider.
I have taken precautoinary measures and used beta fix in the pen after i replaced the water, I will probably put the happy couple back in the tank sometime tomorow.