as has already been mentioned, he needs to be healthy first, has he been wormed?
ive heard regurgitating can mean worms.
once mine are settled in i start taking them out every second day to do something interesting like 10 mins of cruising around a new area, and on alternate days i stick my hand in and give them a pat.
i do that till they stop biting, or looking like theyre going to bite, and just slither away.
keep it up till they stop slithering away and theyre at a point where once or twice a week (even just a pat) is enough to stop them reverting to being bitey buggers.
thats what works fro me anyway.
ive heard regurgitating can mean worms.
once mine are settled in i start taking them out every second day to do something interesting like 10 mins of cruising around a new area, and on alternate days i stick my hand in and give them a pat.
i do that till they stop biting, or looking like theyre going to bite, and just slither away.
keep it up till they stop slithering away and theyre at a point where once or twice a week (even just a pat) is enough to stop them reverting to being bitey buggers.
thats what works fro me anyway.