I have just bought this betta today, and as I've been watching him I've noticed the darker edges to some of his fins and the end of his tail seems like it does not open unless he flares. I have not been able to get him into his 3 gallon tank as it is still conditioning and acclimating to room temperature (where it seems like even without lighting or heater, it is at an extremely steady 81 degrees F over the course of five hours - room temperature is 77 F and the tank has a hood on it which may be keeping the temperature in).This is my first betta that I have owned, and I would like to know if my fish has the beginning of fin rot or fin clamp.
Here are two photos:
Would anyone be able to help? I would like to try to get a salt bath started as soon as possible if fin rot or clamp is the case. As such, though, I only have his transport cup and his filled 3-gallon tank. Would it be too much of a shock for him to get transferred to salt solution from his original water (ie water he came in from the pet store)?
Thank you so much for your help. : )