Very extensive feeding tests with professional fish breeders, fish importers and scientists have discovered that there are very few fish species (freshwater, brackish water, marine water) which do not eat JBL PlanktonPur . These include some catfish species, which live on a pure vegetable diet, some predatory fish, which only take notice of prey bigger than 5 cm, and globe-fish like the Tetraodon mbu, which only eats snails. Initial feeding tests were carried out on all the fish species present in the aquarium facilities of the largest pet shops in Europe, if they had never been fed JBL PlanktonPur before. The fish species ranged from discus, to tetras, barbs, livebearers and dwarf cichlids to Tanganyika and Malawi cichlids. The platies, strangely enough, hesitated occasionally during eating. For this no explanation has been found yet. In the saltwater sector there was some astonishing success with fish considered as particularly delicate.
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