Originally Posted by libertybelle
Hard to say but hopefully you didnít put the cup water in the bowl? If so heís still sitting in ammonia filled water and is unlikely to improve. Did you dose with prime or something to detoxify ammonia/nitrites?
I wouldnít try to feed him. Clean water will help him way more than food right now.
Is it a preset heater? Going quickly from room temp to 78-80 might have stressed him out too.
I filled the bowl and turned on the heater and let it heat up with him in there in the cup so it wouldn't be too hard on him. I usually check the ammonia levels in those cups when I get a new betta and he had just had a water change so it was at 0. I did 3 drops of prime to make sure things were clear for him. I'll see how he is tomorrow morning and maybe try to see if he'll eat.