Perfect for most sizes of fish and some amphibians like larger Axolotls.
These are Daphnia Magna - Large Daphnia.
The Daphnia can be kept in 2 L plastic bottles or any glass/ plastic container with a wide opening.
Food storers or small fish tanks without filtration are best.
Daphnia feed on live phytoplankton, Hobby LiquiZell (Artemia Food/ Instant Algae Food), Dry Active Yeast and cleaning bacteria in the left behinds of snails and Tubifex.