I prefer F Aiptasia. File fish and Peppermints are hit and miss. Nudi’s are good, but also depends on what kind of fish you have, some fish find them tasty. I went a long time without seeing any, I have both file fish and peppermints in both tanks. I am now finding small ones in crevices. I think after a while, the natural predators get use to flake and frozen. I think that is where I am. It’s a double edge sword. I have a little algae in one tank since switching T5s from blue to white. If I cut back on feedings to promote tank grazing, my nutrients will dip. Welcome to the hobby!