Replacement Filter Cartridges
Lighting Decor and Accessories
Where to Buy
Shipping and Returns
FAQ - Aquarium
Aquarium product setup
Do Tetra Air pumps come with airline tubing?
Does my Whisper® Power Filter put oxygen in the water or do I need an air pump?
Is the Tetra In-Tank Filter submersible?
My new Whisper® Power Filter starts to work, is noisy, or shuts off. What should I do?
What should I do if my new Tetra Whisper® Power Filter is not working?
Aquarium cleaning and setup
How do I get rid of the white build-up on the tank, filters, etc.?
How do I safely clean an aquarium before setting it up?
How many hours should I run the hood light?
Should I rinse my gravel before adding it to the aquarium?
Aquarium Equipment Problems
My aquarium heater is not working properly, what can I do?
What can I do if my Whisper® Power Filter has stopped working?
What should I do if my Whisper® Air Pump is not producing air or is very loud?
Aquarium Fish Maintenance
How often do I feed my fish
My fish has a cloudy looking eye. Why?
My fish has torn or shredded fins. What can I do?
My fish has turned dark black or has its color washed out. What is happening?
My fish is covered in tiny white spots, like it has been sprinkled with salt. What can I do?
My fish is darting around the tank and seems hyperactive. What is going on?
What do I feed my fish?
Why is my fish breathing rapidly?
Why is my fish scratching against the rocks?
Aquarium Water Problems
How much Tetra AquaSafe® do I add per gallon of water?
My water has a very bad smell to it. How can I eliminate the smell?
My water is cloudy. How can I clear the water?
My water is green!
Why should I test the water in my aquarium?
Fish Tank Maintenance Tips
Can the Power Filter cartridge be rinsed off and reused?
Does the Whisper® Power Filter put oxygen into the tank?
How often should I change the filter cartridge on a Power Filter?
How often should I change the water in my aquarium?