lately i have noticed a change in moods on my boy jasper. he is spending alot of time on the bottom of his tank sulking. i know i havn't been in the greatest of mood lately my self, but this was the first time i noitced him just sitting at the bottem of the tank. he eats fine, and he seems to perk up when i go over and spend some time and his betta neighbors. he doesn't seem to have anything physically wrong with him, nothing on the outside at least to suggest otherwise.
i was thinking of maybe rearrianging all three bettas fish tanks and switch orniments around in fall four tanks just to give them something new to do, but i am working 40 hours and rarely have time to hang out with my bettas.
jasper i think is a little older then both storm and baby rayne. he is larger then the other two and when i first got him he had terrible tail rot which has finally gone away.
do you think its possible he is depressed or do you think something else could be wrong. i am starting to worry of him below are some pictures of my boy.

awwww he looks so sad!

Does he still flare? What food does he eat? The reason I ask it my betta boy is a sulker, but he is always a bit perkier after a water change and some live food.

(better hide all the ropes and sharp knifes and medication in case he tries to commit suicide kidding)

yes the little brat likes to flare at me and the kitten when we come by.