"tube coolers"

Fast and easy-to-use, this kit contains two dropper bottles for accurate dispensing of test solutions, non-staining test tube with snap cap, and instructions. It comes with enough solution for 130 tests and can be used in either fresh or salt water. Range: 0–8 ppm ammonia.

Vermiculture Starter Kit

Screen Aquarium Top
It features an inset metal screen in the center to easily convert your aquarium to a terrarium. You can even add large plastic tubes at the access holes to turn it into a gerbil run. It also accommodates a light strip.

Sparkling ¹/₂" single cubic crystal in 1 x 2" matrix. Spain.

Complete Equipment for 5- to 10-Gallon Aquariums

View the beauty in sponge structure.

Use this cone-shaped fine-mesh nylon net to let water pass while you filter out plankton.

Get Superior Performance from Unobtrusive Devices

Hatchery kit comes complete with a base, a piece of airline tubing, three packets of hatch mix and instructions. All you need is a small air pump, light source and an empty 2L soda bottle.

A simple and elegant betta tank.

Dissect authentically, like cardiologists and medical industry professionals do today.

Fresh frozen (unpreserved) dissection specimens shipped in coolers of ice directly to your classroom.