AquaClear 30 Activated Carbon Filter Insert improves water clarity in fresh and saltwater aquariums, for the AquaClear 30 Power Filter, it provides superior adsorption which eliminate odors, discoloration and impu
Equilateral Prism, Material: acrylic, Refractive index close to optical glass, can produce a rainbow from a non-monochromatic light source such as sun light, Perfect for student use, which will not break or chip like glass, is a softer material, Size: 50mm length, 25mm face size
Density Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube
Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube
Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aqu
AquaClear 70 Foam Filter Insert is mechanical filter media that effectively removes particles and debris from aquarium water. Prevents particulate waste from prematurely clogging other media in the filter, Designe
Fluval* Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process, inside the filter chamber to prevent debris bypass, pore size allows water
Exo Terra Coco Husk is made from compressed coconut husk from the plantations of tropical Asia, 100% natural substrate, Ideal for natural terrarium set-ups, Increases humidity in terrariums, Stimulates natural digg
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