Tetra air pump

The Glitch:
Loss of power -OR- Sounds very loud

The Fix:
Replace the worn-out rubber diaphragm:

• Unplug the pump.
• Open the pump by removing the screws at the bottom.
• Look for the round rubber disk—that’s the diaphragm—remove and replace with a new one.

Tetra aquarium heater

The Glitch:
Not maintaining the correct temperature

The Fix:
Make sure it’s been in operation for 36 hours. The heater will slowly raise or lower the temperature over time, which prevents a large temperature swing that can shock the fish. Check your water temperature with a submersible thermometer or, better yet, a strip thermometer that adheres to the glass. If the heater is not working properly, feel free to contact us anytime, or visit your local pet store.

SAFETY NOTE: Never remove a heater from the water if it is still turned on. Unplug it first, let it cool and then remove it.

Tetra Whisper Power Filter

The Glitch:
The magnetic impeller assembly becomes clogged with debris (fish waste, mineral deposits, etc.) and the filter stops.

The Fix:
Clean off the debris

• Remove the magnetic impeller assembly from the filter.
• Place the impeller assembly in white vinegar and soak for 15-30 minutes, then rinse in warm water.
• Use a Q-tip® and vinegar to swab out the impeller reservoir and intake tube, then rinse with water.
• Put the magnetic impeller assembly back together. Be sure the magnet and the white blades are connected as one piece. If they have become separated, you will need a new impeller.