My male guppys stomaches is getting bigger

I just bought a male guppy and his stomache is growing down in kind of like a triangle shape and the store we bought him from had a lot of dying fish but none in his tank and I don't know what to do.

 

Could you provide us with a picture and some details on your tank?

 

From your description of your fish, I have had one like that before and it disappeared a few days later. But of course, like gong said it would be helpful if you could provide us with a picture.

 

His stomach looks normal now but it was really big for about two days.

 

If I'm to guess then, he was most likely bloated. You may be feeding him a bit too much.

 

Now he is rapidly getting bigger and I haven't even fed him before he started getting big

 

try feeding him some deshelled peas

 

try feeding him some deshelled peas

I have tried that

 

Is he displaying any behaviors? Abnormal ones.

 

He died his stomach burst open