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Aquarium Water Pumps are necessary in every aquarium application. Whether they are used to deliver water from your filter to your aquarium or simply to provide water movement in the tank, they are needed in every aquarium. 

External water pumps are usually installed at the floor level next to the sump. External (in-line) pumps are recommended for larger aquariums 100 gal or more in volume. External water pumps will usually give you higher pressure and flow but may be a little louder comparing to submersible pumps.

Submersible water pumps are usually placed directly in the sump's return compartment. These pumps are easy to install and service. Submersible water pumps are recommended for aquariums up to 180 gal. These pumps tend to be quieter than external pumps but can also transfer more direct heat to aquarium water. For most applications, internal (submersible) water pumps provide a good mix of performance and ease of operation.

Powerheads are mostly used in aquarium application to move large volume of water at low pressure, and wide output, in order to create gentle water currents, replicating water flow of natural ocean waves. Powerheads' small size and low power consumption are hard to beat when you need to move a larger volume of water.

At AquaCave, we offer some of the best selection and best prices on aquarium water pumps, external water pumps, submersible water pumps, and powerheads for you marine, reef, and freshwater aquarium.

  • Simplicity Dosing Tube Holder Simplicity Dosing Tube Holder

    Simplicity

    Simplicity Dosing Tube Holder

    Simplicity Dosing Tube Holder Fits aquariums and sumps with a maximum thickness of 1.25 in., including rim Secures flexible tubing with a max. thickness of 5/8 in. Can be installed vertically (standard sump) or horizontally (Euro-style...

    $14.95
  • HYDROS IceCap Gyre WaveEngine Pump Adapter HYDROS IceCap Gyre WaveEngine Pump Adapter

    HYDROS

    HYDROS IceCap Gyre WaveEngine Pump Adapter

    HYDROS IceCap Gyre WaveEngine Pump Adapter Direct Pump Driver - For many pumps the HYDROS WaveEngine connects directly to the pump head. This removes the clutter of the power brick and the control head for these pumps.HYDROS IceCap Gyre WaveEngine Pump...

    $14.43
  • 5 Liter Space Saver Container 5 Liter Space Saver Container

    AquaCave

    5 Liter Space Saver Container

    5 Liter Space Saver Dosing Container This lightweight, rectangular-shaped, high-density polyethylene container features a convenient carrying handle. The straight wall is 9-3/16"L x 2.5"W x 14-5/8"H. The graduations are at 1, 2, 3, and 4 liters...

    $12.95
  •  Anti-Vibration Pad, 4" x 4" x 7/8"  Anti-Vibration Pad, 4" x 4" x 7/8"  Anti-Vibration Pad, 4" x 4" x 7/8"

    AquaCave

    Anti-Vibration Pad, 4" x 4" x 7/8"

     Anti-Vibration Pad, 4" x 4" x 7/8" These sound dampening pads work best with heavy external water pumps and large air pumps and recirculation blowers where there is significant vibration being transferred from the pump to the surface the pump is...

    $5.95
  • Cable Tie Mount with Zip-Tie, 5 ct. Cable Tie Mount with Zip-Tie, 5 ct.

    AquaCave

    Cable Tie Mount with Zip-Tie, 5 ct.

    Cable Tie Mount with Zip-Tie, 5 ct. Keep cables bundled and organized. Adhesive backing sticks to walls and floors. 4" Ties included. Included: 5 x Base mounts, black 5 x 4" zip-ties, black Cable Tie Mount with Zip-Tie, 5 ct. Keep cables...

    $3.95