"live microorganisms"

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

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 bottom-dwelling bivalved crustaceans are found in nearly every aquatic habitat.

Mixed genera. Also known as scuds, amphipods are freshwater crustaceans.

The culture supplied includes copepods in various stages of development.

Poecilia reticulata.

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

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.

Study the Rotifera under your microscope to discover the variety of structures among them. Subculture them in Alfalfa or Hay medium to increase your supply. Species may vary based on availability.

Illustrate the structure, feeding habits, responses, and reproduction of a typical Anthozoan.