Size:53 um This listing is for one 4" Low Pro stackable sieve of the micron size you choose. Reasons to buy Plankton collector sieves: Mesh cloth fabric prevents the damage that can occur to Copepods when running water pressure through a sieve. Collect or separate Copepods, Rotifers, and other zooplankton. Made with Micron Mesh cloth to protect and prevent damage to delicate organisms. Water pressure when running cultures through the sieve can damage the delicate bodies of zooplankton animals like copepods.Some uses for our aquarium sieves are saltwater rotifer culture, Brine shrimp growing, copepod cultures, fish larvae development. Sieve Outside diameter: 5 inches Sieve Inside diameter: 4 inches We have decided to offer these sieves to the public for the first time. We have received numerous requests for them. It seems that sieves of this size are hard to find for the hobbyist. When you do find similar sieves, they are usually of poorer quality or they are too expensive. These aquarium aquaculture sieves plankton collectors are made with high grade PVC frame and laboratory grade nylon mesh fabric imported from Germany. They will hold up under rigorous use in saltwater, UV exposure and immersion in chemicals like bleach chlorine. We have been using them for years in our Aquaculture Nursery Farms laboratory.
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