Good post. Are the belt feeders capable of dispensing large pellets?
It would definitely dispense large pellets. My only concern would be if the vortex from the circulator would pull that large of a pellet in or if the buoyancy and larger profile would lead to the pellets getting pushed to the edge of the pond on windy days. Either way, I'm guessing all it would take is some rearranging so the pellets are dropped into the current itself rather than around the vortex. I'll measure tonight to see how large of opening it has. Seems like it would handle even golf ball size pellets in my mind.
PS The bad thing about belt feeders is that you have to reload them every 24 hours. We need some that are 72 hours or so.