Tetrabetta floating Mini pellets are specially formulated, highly palatable, floating pellets are an ideal staple diet for Beta’s. Precise amounts of select vitamins and nutrients help support fish’s immune system. Nutritionally balanced staple diet for Beta’s. Highly palatable, Floating Pellets. Precise amounts of Select vitamins and nutrients help support Fish’s immune system. Length of pellet is 2mm and diameter of pellet is 1-2mm.