Betta Having Trouble Eating

[iBetta]

My male Delta Tail Betta has been having some trouble with eating lately.
He gets fed Hikari Betta Bio-Gold pellets along with bloodworms.
He can't seem to swallow or chew his food, and just spits it back out.
He is lucky if he can swallow 1 small pellet each day.
He has been like this for about 4 days now. I'm starting to get worried he is sick.
I was told to upload a picture of him to help identify a problem, I took this 5mins ago, so here it is:

 

[blesser13]

Does his back is kinda curved? or something suspect when he swim?

However, they will also stop eating if tank conditions are bad (like if there is ammonia present which may happen in a small tank) or if the temperature is too low. Remember that bettas are tropical fish and need temperatures in the high 70's.

Also, it could be the food. Bettas often prefer pellets over flakes and sometimes have trouble eating large pellets (such as Wardley brand which I wouldn't recommend anyways). HBH Betta Bites and Hikari Betta Bio-Gold are commonly found brands that tend to be loved by bettas. There a variety of frozen foods...bloodworms, brine shrimp, mysis shrimp, krill, etc.

If he still isn't eating in a couple more days I recommend trying the frozen pea method. Take a frozen pea and thaw it out (dropping it in hot water and letting it soak works well). Then remove the shell and cut the pea into small Betta mouth-sized pieces. Drop a piece or two into the water where the Betta can see it. Many Bettas will be enticed into eating a piece of pea or even multiple. This can help his appetite return to normal.

If you add too many pieces of pea -- particularly if he doesn't eat them -- you can cause a spike in nitrate and nitrite levels as the food rots, so do be careful.

Frozen peas are recommended by many as a regular additive to a Betta's diet, too. It can help prevent constipation, which can be a serious concern for Bettas

 

[iBetta]

That is just in the picture his back is curved, he went to turn just as I took the picture

I have the water heated to 25*C/77*F.
I suspect it could be the water now...
It is slightly cloudy, so I'll work on getting that fixed up.

I'll also try the peas.

Thank you