African Dwarf Frog and Feeding...?

My boyfriend bought a little box with two african dwarf frogs and a snail. The biggest frog seemed to own been picking on both the snail and the smaller frog (that's what he said...)...now the snail is just staying on the other side and the smaller frog stopped intake, can't eat (he spits his food back out), is lethargic and doesn't move.

My boyfriend thought he be dead this morning cause he just sit there with no movement for the longest time until the bigger one went to bite him..but again..and he moved away a little...

Is there something my boyfriend is doing wrong? He tried putting multiple pellet in there cause we both thought they be hungry but the bigger one will eat one and go away, the smaller one tries and can't so he spits it rear legs out and then all the pelletes go to surplus. The store he got them at said he should clean the tank out every few months, nurture them once a week (which i found disturbing cause it was a TINY package of food that most inhabitants would go through quickly) and it was a year's supply worth apparently...

i've read up on articles from googling this but none of them have help. The frog doesn't have any significant changes to him...no rosiness, swelling, bloating etc. but he does float sideways. one half of him sinks so he doesn't seem to move.

can frogs be paralyzed?
you want to feed him a proper diet maybe remove the smaller frog till he is the same size as the other one or Just keeping them separated adjectives together. African dwarf frogs do not have teeth because they do not chew their food, they swallow it whole. Favorite foods include blood worms, water fleas, and shrimps, although these frogs will also put away mosquito larvae, black worms, small fish, and small earthworms. And on rare occasion you will see these frogs intake water snails and brittle shells. African dwarf frogs are bottom feeders and one will rarely see them eat anything from the surface of the hose down.
its probably stress/temp/impaction related as u've already said the larger frog attack the smaller, i would separate and double check the enclosure is correct
Answers:    They should be in filter water, just like fish. You can seize the water tested for free at most pet stores, or buy strips yourself. This will tell you alot about how capably you are caring for them. They should be fed at least once per daylight, using aquatic frog or frog/tadpole pellets. If one is significantly larger he may pick on the smaller one, or if in that is not enough space this can happen too. I recommend a 10gal aquarium at least for them. Just similar to fish, you should do weekly cleaning and water changes. The amount and frequency of cleaning and water varying varies from one person to the next. I would do a 10% river change weekly, and a full cleaning monthly (don't take all the hose down out, just siphon the gravel and scrub the sides).
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