Australian Freeze Dried Blackworm Cubes with the addition of colour enhancing algae. All natural ingredients. High protein with additional colour enhancement to bring out red/pink/orange colour on carnivorous fish species such as Discus. Not for white Discus as colour may change due to natural pigment. Use original cubes if colour enhancement not required. A high protein easy to feed food that will float or can be pressed onto glass of aquarium. A very clean and convenient food supplied in a resealable pouch. UK importer.