AHH MY BETTAS?!?!?!

#1
Well my other betta, i just found, was not moving. this scared the living helsh outta me and i saw he was chewing java moss. i had to flick the tank a few times to get him conscious again and he tried and tried then spat it out. why did he do that?!??!?! i dont think hes hungry cause i already feed him like hours ago!