AQUANEAT Dual Outlet Aquarium Air Pump

The AQUANEAT AP-215 is a dual outlet air pump for fish tanks up to 100gal. It is a compact unit at 4x2.25x1.75 inches, with a control knob to adjust the bubbles and 4 rubber stabilizer feet to cut vibration. The kit includes 2x 4 ft tubing, 2x 13 air stones and 2x check valves.

Two outlets, two jobs

Use one outlet for a sponge filter and the other for an air stone, or run two sponge filters in one tank. AQUANEAT advises using it with 2 air stones or sponges for best results and avoiding large bubble walls or multiple filters per outlet. Those need more pressure than a pump this size makes.

Adjusting output

The control knob lets you dial bubbles up or down. That is handy for fry tanks, where a gentle sponge filter is safer, and for planted tanks, where too much surface agitation drives off carbon dioxide.

Keeping it quiet

The rubber feet help, but placement matters more. Set the pump on a soft pad or towel rather than hard wood, and keep the tubing from touching the stand.

Connect it properly

AQUANEAT notes that you should push the tubing all the way onto each fitting so it stays put. Fit the check valves with their arrows toward the tank to stop backflow.

Larger option

For bigger setups, AQUANEAT also makes a 300GPH 4-outlet version for up to 200 gallon tanks. It includes 16ft of tubing, 4 air stones, 4 check valves, 4 suction cups, 4 control valves and 4 T-connectors, and it suits several tanks, aquaponics or small ponds.

Pairs well with

An AQUANEAT bio sponge filter is a natural match. Swap air stones every few months as they clog, and keep spare airline tubing on hand.

Check the intake and fittings once a month so a slow clog or loose connection never catches you by surprise.