I have feed those NLS pellets.
Feed 1 at a time until the fish slows down .
4 or 5 minimum each serve sounds right.
Repolie the next time you see an animal being slaughtered or have to opportunity to catch your own fish for food have a look at the size of the stomach. Have a look at the stomach contents as well. I have never seen a wild fish with a stomach even close to the size of its eye. Just think about a fish swallowing another fish or ten and you will see that story of a betta stomach being the size of its eye is a total fabrication .