"water bath"

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

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.

Complete Equipment for 5- to 10-Gallon Aquariums

Rotifers are well adapted to adverse conditions; when dry, the eggs remain viable for years.

For consistent readings underwater.