probably constipation. feed him a bit of cooked deshelled chopped up pea, and fast for three days.
isolate him if you can. epsom salt dips can realllly help with constipation. just make sure it is epsom salt. can be found very easily and cheaply in any pharmacy that sells over the counter meds.
mix 1 teaspoon/gal in some sort of container (even a jam jar or pickle jar would be fine). put the fish in for up to 30 mis once or twice a day. should make him do a big poo and clean him out, especially if feeding peas at the same time.
constipation is nothing to laugh at. they can die from it. dont overfeed the tank! bettas are pigs and he is likely eating more than his share.
good luck!
cheers.
isolate him if you can. epsom salt dips can realllly help with constipation. just make sure it is epsom salt. can be found very easily and cheaply in any pharmacy that sells over the counter meds.
mix 1 teaspoon/gal in some sort of container (even a jam jar or pickle jar would be fine). put the fish in for up to 30 mis once or twice a day. should make him do a big poo and clean him out, especially if feeding peas at the same time.
constipation is nothing to laugh at. they can die from it. dont overfeed the tank! bettas are pigs and he is likely eating more than his share.
good luck!
cheers.