It's interesting that although many Geophagines have what appear to be a large mouth, they prefer small items.
When wild adults stomachs were analyzed, most items were very small.
On another side, all cichlids have two sets of jaws, the obvious outer jaws, and also the pharyngeal jaws and teeth in their throat used to process whatever they are accustomed to eat in nature.
Some used to grind tiny mollusks, or algae scraped from rocks, some process fish prey with the inner jaws, while the outer jaws can hold another prey item to be processed later.
I use a combination, the more aggressive eaters are drawn to floating and while they are going at that I often drop some sinking directly to less aggressive eaters.
I use several brands and mix it up. Nls, hikari, omega.
I fed omega one sinking pellets medium size for a while now went to buy more and was sold out so
I grab some hikari floating pellets. My fish go crazy for the floating pellets and they all pop up at the surface to grab the pellets, from my experience feeding floating pellets is a show and water splasher