My Angelfish are Fat!! Like Really Fat!!

[FrozenFins]

As I went and said hi to my fish I spotted something, my two angelfish are fat. usaully if this happend I wouldn't worry and start fasting them. But I don't think food is the cause because I have only spotted their fattyness till today.

I feed them NLS Pellets

I have a sand substrate, I was told that sometimes fish will mistake sand as a pellet, and will eat the sand resulting in a digestive blockage and then die. Is this what happend to my angelfish?

Here are some pictures

Let me know if you need the water parameters. 

Edited November 24, 2020 by James Black

[FrozenFins]

Also I know its not breeding because they don't have their breedig tube visibal. The grey angelfish has not reached sexual matruity yet.

[ange]

Is it all of the angelfish or just a few? If it's only a few I'd suspect they've been piggies and bloated themselves. If it's a significant amount of them, have they been dewormed at any point? Often a single round of General Cure/Paracleanse will help with current issues however it won't kill off eggs.

[FrozenFins]

No, i have one agelfish that is not fat. And all the other fish in the tank are not fat either

[ange]

I'd lean toward it being bloating then, especially if he's still eating very well and doesn't have other symptoms that would imply internal parasites. Whenever this happens to my fish I usually feed them Soilent Green with garlic juice and duckweed, but some people have fed things like frozen peas, spirulina brine shrimp, and other foods with a lot of roughage to help clear them out.

[Bean]

This happened to me. My angelfish looked very fat but a few days later they looked normal and I didn’t really do anything.