I have to agree that NLS is wonderful for keeping fishy systems regular, also, they're the only pellets my Bowie would eat.
I feed both of my boys about 6 pellets in a feeding (2x's a day).
I sneak an extra pellet in a couple of times per week for Bowie; I could probably up him to eight pellets regularly, without adverse effects (just concerned he would become a true fatty if I upped his feedings that much)
. I tried to increase Remedio to seven pellets a meal, but that didn't seem to sit well with him.
Six seems to be the magic number to keep both my boys happy and at a healthy weight.