sera Micron Powder is a finely powdered growth food for all young fish of egglaying species until they reach the size of a newborn live-bearing tooth carp (6 mm). sera Micron Powder is also an excellent food for marine fish fry and Artemia nauplias. This finely powdered food contains both zooplankton (18% krill) and phytoplankton (51% spirulina), and consists of tiny particles that float in the water. sera Micron Nature thus optimally resembles natural plankton. It supports healthy growth, the immune system as well as strong development and coloration. Due to its excellent digestibility, the water is not unnecessarily polluted.sera Micron Powder+ powdered food for rearing young animals+ with a high percentage of zooplankton and phytoplankton+ floats in the water and thus resembles natural plankton+ promotes healthy development and strengthens the immune system+ excellent digestibility - does not cloud the waterFeeding recommendation sera Micron PowderFeed several times daily, only as m