I use a feeding ring I bought at petco, it's just a suction cup holding a blue styrofoam plastic ring thingy. It works great because my blue throat trigger has learned that is where his krill and food is and he and my other fish visit that side of the tank when it's feeding time so the fish know it's where the food is, when the trigger grabs food from there it makes the flakes wiggle and drop out so the other fish dine too while the flakes are cascading around the tank via pumps so it doesn't hit the overflow box right away if at all. It's amazing how fish are easily trained and I personally like the trigger and clown fish for their very personable interactions with me so I try and focus on only getting personable fish for my tank, got any other suggestions?