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Versatile calcium reactor enhances calcium supplementation in reef aquariumsSupplies biologically available calcium to help encourage coral growthEasy-fill design allows convenient addition of calcium reactor mediaSpace-saving calcium reactors allow versatile, in-sump or out-of-sump installation. Hydor Performer CR Calcium Reactors boast user-friendly features to make calcium supplementation in reef aquariums simple and convenient. Performer CR calcium reactors can be installed in-sump to reduce under-cabinet clutter. Easy-fill design allows top access for hassle-free media re-fills. Includes precision bubble counter to help monitor CO2 injection rate within calcium reactor chamber. Reactor media, supply pump, and CO2 system sold separately. andnbsp; For Aquariums Media Capacity Dimensions CR 750 Up to 200 gallons 1.5 gallons 4.7" dia x 23.6" high CR 1500 Up to 400 gallons 2.3 gallons 5.9" dia x 23.6" highPlease click on "More Information" for directions for use.

Perfecto Undergravel Aquarium Filter The Perfecto Undergravel Aquarium Filters come with unique design that allows uniform flow across the entire tank. The heavy duty injection-molded plastic of the filters holds up under the heaviest rocks and tank decor. These filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: · Ideal for use with air pumps, power heads, and refillable carbon cartridges · Durable and effective · Plastic construction

Perfecto Undergravel Aquarium Filter The Perfecto Undergravel Aquarium Filters come with unique design that allows uniform flow across the entire tank. The heavy duty injection-molded plastic of the filters holds up under the heaviest rocks and tank decor. These filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: · Ideal for use with air pumps, power heads, and refillable carbon cartridges · Durable and effective · Plastic construction

Perfecto Undergravel Aquarium Filter The Perfecto Undergravel Aquarium Filters come with unique design that allows uniform flow across the entire tank. The heavy duty injection-molded plastic of the filters holds up under the heaviest rocks and tank decor. These filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: · Ideal for use with air pumps, power heads, and refillable carbon cartridges · Durable and effective · Plastic construction

Perfecto Undergravel Aquarium Filter The Perfecto Undergravel Aquarium Filters come with unique design that allows uniform flow across the entire tank. The heavy duty injection-molded plastic of the filters holds up under the heaviest rocks and tank decor. These filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: · Ideal for use with air pumps, power heads, and refillable carbon cartridges · Durable and effective · Plastic construction

Perfecto Undergravel Aquarium Filter The Perfecto Undergravel Aquarium Filters come with unique design that allows uniform flow across the entire tank. The heavy duty injection-molded plastic of the filters holds up under the heaviest rocks and tank decor. These filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: · Ideal for use with air pumps, power heads, and refillable carbon cartridges · Durable and effective · Plastic construction

A 100 % clear silicone rubber sealant for repairing leaky aquariums, broken ornaments, and can be used to build small aquariums.

Perfecto Pentagon Undergravel Filter The Perfecto Pentagon Undergravel Filter offers a unique design that allows uniform flow across the entire tank. The heavy-duty injection-molded plastic holds up under the heaviest rocks and tank decor. The UGF filters are easy-to-install and include fish protectors on the flow spouts and raised tube connectors to keep gravel from falling beneath the plates. Features: . Ideal for use with air pumps, power heads, and refillable carbon cartridges . Great for fresh or saltwater aquariums . Promotes growth of beneficial bacteria growth . Ideal for use with air pumps, power heads, and refillable carbon cartridges

Versatile light strip designed for use with 2 1/2 gallon tanks. Use with glass or acrylic top only.

Includes hinge, handle, and back plastic strip. The?third set of dimensions listed are the actual dimensions of the glass only. The plastic back strip adds approximately 1-1/2" inches to the width.Please click on "More Information" for canopy/tank compatibility chart.