The MightyJet AIO (All-In-One) DC Return Pump an excellent choice for nano aquariums ranging from 30 to 50 gallons.  The MightJet is super quiet, has a run-dry protection two different flow modes with 9 different speeds, and a feed mode.

The MightJet pushes up to 538 gallons per hour, but can be dialed to your preferred flow rate with the equipped controller at the touch of a button. Once you find the setting that is right for you, you can lock it in by holding the down-arrow button, that the controller will display "LC" when set.  

The pump`s two return flow modes with 9 speed settings and feed mode are distinguishable by the controller`s display:

• Mode 1: Stream - This mode will display as a "1" on the controller and is a calm, uninterrupted flow at a single speed.
• Mode 2: Sine Wave - This mode will display as a "2", and oscillates the water movement, achieving a wave-like motion within the water column
• Feed Mode - This mode will display as a "FE", and shuts the pump off for 10 minutes, then resume automatically after 10 minutes or by pressing the `Feed` button.

Features:

• Fits In Virtually All AIO Aquariums
• Ultra Quiet DC Technology
• Run-Dry Protection
• One Touch Feed Mode
• Adjust the flow to suit your tank using the included controller

Specifications:

• For aquariums between 30-50 gallons
• Dimensions: 4.4" x 2.6" x 3.6"
• Flow rate: up to 538 GPH (gallons per hour)
•  Consumes a maximum of 22 watts (24V DC)

Includes:

• Barbed Adapters: 1/2", 5/8" and 3/4"