King British Tropical Fish Mini Pellets are a complete food that slowly sinks through the water column making them ideal for community tanks containing surface, mid-water and bottom feeding tropical fish. King British Tropical Fish Mini Pellets are a complete food that slowly sinks through the water column making it ideal for community tanks containing surface, mid-water and bottom feeding tropical fish. The pellets are rich with 45% protein to suit the higher metabolic rate of tropical fish species. The pellets are 1mm to 2mm across and are water-stable, meaning they remain as enticing mouth-sized chunks rather than dissolving.