"live+microogranisms"

Long life cycle (approximately one month). Useful for comparative population studies and for preparing salivary gland chromosome squashes.

Recommended by the Carnegie Institute
Mature Drosophila are cultured in our own labs, and are marked with the culture initiation date. Culture is shipped in our instant medium in a shatterproof vial. The pupae will usually appear within ten days of the ship date. You will also receive WARD’S Drosophila Culture Guide. Note: We can supply any of our single strains in the larger quantity for 100 students. Call our Customer Service department for details.

Field-collected material; species not identified.

Marine. Filamentous; polysiphonious construction. Collected.

Characterized by reddish plastids (rhodoplasts).

Improper pH can cause your fish stress and lead to disease. You can treat up to 944 gallons of fresh water.

The adhesive forms a waterproof seal, won’t crack or shrink, and stays flexible when dry. It won’t harm freshwater or saltwater life-forms.

For consistent readings underwater.

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

Increase acidity and promote moisture retention with this soil mixer, which can help you start seeds, rootings, transplants and cuttings. 1.35kg.

Raise Large Fish With A Low-Maintenance System

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

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.

With no metal corners or panels, these plate glass aquaria allow students to carefully observe aquatic life from all angles.

Ideal tool for aquatic ecosystem studies. Collect periphyton samples with ease using this specialized sampler, perfect for water quality and aquatic ecosystem studies.

The rounded, differently sized stones make your tank look like a stream bed.

Attractive Bottom Cover Enhances Natural Filtration and Nitrogen Cycling
Gravel contains no lead or chrome and won’t change the pH or chemistry of the tank. Pebble sizes up to 1/4" dia.

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.

Create beautiful living paintings with colorful yeast.