"Freeze-Dried Specimens"

Create a balanced ecosystem in your aquarium with the addition of these small, freshwater algae eaters. They reproduce rapidly, laying their eggs on the glass sides of the aquarium.

These small marine crustaceans are supplied as adults, and measure approximately ¹/₄" in size at the time of shipment.

These slugs maintain a marine aquarium’s ecological balance by feeding on algal growth.

Planorbids, mixed genera. Compare these attractive, spiral-shelled, herbivorous freshwater specimens with other snails. They will eat aquarium plants

Philodina sp. Easy to culture and easy to examine under a microscope because of the lack of a lorica (shell), these typical rotifers are perfect for general study. Culture instructions are included.

Easily compare the different types of structures in a variety of small freshwater crustaceans with this convenient freshwater culture mix.

Black Planaria are a flatworm commonly used in science fair projects. They do not bite and move very slowly, making them easy for young students to observe.

Hypsibius sp. The water bear is a complex animal representing the unusual phylum of Tardigrades, which contains about 400 marine, terrestrial, and freshwater species.

The marine hermit crab is a scavenger and preys on small animals.

This unusual-looking Echinoderm, a small ball-shaped organism, displays radial symmetry. It moves via tube feet.