JBL ProNovo Fil are Red blood worms as treats for all ornamental fish from 3-10 cm. Red blood worms are the ideal food for strengthening fish. Larvae of the chironomids (nonbiting midges) sometimes occur in masses and form a main food source for very many fish species in the wild. They are not the larvae of mosquitoes (Culicidae). Ideally you should find a staple food for your ornamental fish, e.g. JBL ProNovo Bel and supplement it with a second staple food such as JBL ProNovo Color. In addition, use alternating treats and supplements such as JBL ProNovo Spirulina or JBL ProNovo Fex, Fil, Daph or Artemio. This ensures a varied diet for the fish in your care.JBL ProNovo Fil+ freeze-dried red blood worms (larvae of chironomids, Chironomidae) as an ideal food supplement for healthy ornamental fish+ red blood worms are very rich in nutrients and form the food basis of many fish species in the wild+ Alternative to live and frozen food: supplementary nutrition for tropical freshwater fish+ d