Out of Stock No Longer Available Tetra Hexagon Aquarium Kit with LED Bubbler, slide 1 of 1

Tetra Hexagon Aquarium Kit with LED Bubbler

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No Longer Available This item may be discontinued. We're not sure when it will be available again.

Tetra Hexagon Aquarium Kit with LED Bubbler brings a splash of beauty to your home, office or dorm environment. The kit includes a hexagonal, seamless aquarium and auto color-changing, submersible LED lighting unit that combines with an air curtain to form a uniquely colorful bubbling effect. It also includes a Tetra Whisper filtration unit with a Tetra Bio-Bag for easy, reliable maintenance. for easy maintenance. All you have to do is add gravel, plants, water and fish to customize this aqua environment to your taste.

Key Benefits
  • great for Bettas, and with the addition of a heater, small tropical fish
  • Includes a clear plastic canopy with convenient feeding hole, an auto-changing LED bubbling disk, air driven Whisper internal filter, small Whisper Bio-Bag, and an air pump to drive both the airstone and filter
  • The LED bubbler colors include Red, green, blue, and everything in between
  • Hexagon shaped tank with clear lid and feeding hole
  • Great for beginning aquarist
What's Included

Hexagonal aquarium, submersible LED lighting and bubbling unit, Tetra Whisper filtration unit with Tetra Bio-Bag.

See all items by Tetra

  • Item Number
  • Dimensions
    6.75 x 7.625 x 8.25 inches
  • Weight
    3.1 pounds
  • Aquarium Type
  • Tank Size
    Up to 10 Gallons
  • Capacity (Max)†
  • Fish Type
    Tropical Freshwater, Betta
  • Material

This aquarium is appropriate for keeping one Betta or up to two community tropical fish (We don’t recommend goldfish in any kit smaller than three gallons due to waste levels.)


How do I safely clean an aquarium before setting it up?

If you purchased a new aquarium, simply rinsing it out with plain water will be enough. When you get a "new" used aquarium, the most important thing to remember is what not to do. Do not clean the aquarium with soapy water or with cleaning products. You should simply clean the aquarium with hot water. If you wish, you can mix some non-iodized salt in the water you are using to clean the tank. You may want to use a clean razor blade to scrape off any algae or calcium clusters which you can't remove from the glass with water alone.

Should I rinse my gravel before adding it to the aquarium?

Yes, you should remove the gravel from the bag and place it in a clean bucket. Run water over the gravel several times to remove any dust that may be on it. Then hold the gravel in place and empty the water from the bucket. A household colander can help speed the process.

Why should I test the water in my aquarium?

In nature, waste products from decaying matter, fish waste, and other animal waste are naturally filtered. The harmful ammonia and nitrites are removed by bacteria and plant life. The substrate at the bottom of a body of water will absorb harmful chemicals and decaying matter like a natural filter. The actual size of rivers and lakes will keep water healthy for animals. The larger a body of water, the less lethal any harmful chemicals will be to its inhabitants. In an aquarium, the natural filtration is replaced by equipment, which filters the water. The larger the aquarium you own, the easier it is to keep the water balanced and healthy. To ensure the ammonia and nitrite levels have not reached harmful levels, be sure to test the water. To understand how filtration occurs, one needs to understand the cycle. Fish waste and other decomposing material will produce ammonia. In high quantities, this chemical will kill animals in an aquarium.A new system will not have nitrifying bacteria present. Ammonia levels and then nitrite levels can reach deadly amounts. If this happens, partial water changes will bring levels down without destroying all of the nitrifying bacteria. This will only last about four to six weeks before the tank “cycles.” Or, you can add Tetra SafeStart® to your new aquarium. SafeStart® accelerates the establishment of the bio-filter in newly set-up freshwater aquariums. The live bacteria start working immediately to provide a safe and healthy environment for your fish without the long wait. SafeStart can also be used after a water change, when adding new fish or after medicating.Elevated levels of ammonia and nitrite should not occur in a “cycled” tank. Causes of elevated levels in a mature system would indicate overstocking or over-feeding, and should be corrected immediately.

What should I do if my new Tetra Whisper® Power Filter is not working?

Be sure there is water in the pump chamber -- if you don’t add water to the pump chamber, the filter will pull in air. Also, take care with how much water is in the aquarium. Most filters need the water level to be about one inch from the lip of the filter, and a shallow tank may prevent the filter from working. Finally, make sure your bubble walls and/or air stones are not directly under the intake tube. If bubbles go up the main tube, it will cause a rattling sound and may stop your filter from working.

My new Whisper® Power Filter starts to work, is noisy, or shuts off. What should I do?

This is often a problem with the impeller. Make sure the magnet and the white blades are connected as one piece. If they are separated, you will need a new impeller. This separation is covered under our 2-year warranty. Another problem that may occur with the impeller is sand. Tetra Whisper® Power Filters will not run properly in an aquarium containing sand. The sand gets between the magnetic impeller assembly and the Energizer®, preventing it from turning. You could possibly replace the sand with gravel or purchase a mesh net from your local pet store. Place the mesh net (or a piece of panty hose) on the strainer. Your filter will still pull out waste but it will not pull up the sand. Gravel is the preferred choice over sand in a freshwater aquarium.

Does my Whisper® Power Filter put oxygen in the water or do I need an air pump?

Tetra Whisper® Power Filter cleans the water and adds oxygen. As the water flows back into the tank, it breaks the surface, creating turbulence that adds oxygen to the water. It works like a waterfall. It can only benefit your tank to have extra oxygen, and the Whisper® Power Filter is all you need.

What can I do if my Whisper® Power Filter has stopped working?

Sometimes, the magnetic impeller assembly can become clogged with debris. To clean off fish waste, mineral deposits, etc., you will need to take the magnetic impeller assembly out of the filter. Take the rubber end cap pieces off the top and bottom. Slide the magnetic impeller assembly off the metal shaft and place both the impeller and the metal shaft in white vinegar. The metal shaft and magnetic impeller assembly should be soaked side-by-side. Do this for two hours and then rinse them in warm water. You can now put the magnetic impeller assembly back together. Check to be sure the magnet and the white blades are connected as one piece. If they have become separated, you will need a new impeller. This separation is covered under our two-year warranty. If you need a new impeller or another part, you can buy replacement parts directly from Tetra.

When can I add fish to my new aquarium?

When you first set up your aquarium, it is recommended you run your filter, heater, and air pumps for 24 – 48 hours before adding your fish. This will allow the heater to stabilize the temperature and ensure that all equipment is working properly. After this 24-48 hour period, you can add your Tetra AquaSafe® to the water, and then immediately add fish. When you do add your fish, float them in a plastic container for 20-30 minutes. This will allow the water temperature in the bag to be the same as the water temperature in your aquarium. After three to four weeks, you can begin introducing new fish at a rate of one to two fish per week. Just keep in mind that you should have one gallon of water per one inch of (mature) fish. Have three gallons of water per one inch of goldfish.

Rating: 3.1 of 5 stars 58 Reviews 58 Reviews 3.1 out of 5 Stars

70% Recommend

70% of reviewersrecommend this product

Rating: 3.1 of 5 stars 3.1 / 5

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58 Reviews

Showing 1-10 of 58 Reviews

  • 2 out of 5 stars

    not worth it

    By Bassettmom4 on Mar 20, 2021

    Sorry I bought this tank just not what we expected . Filter is not good doesn’t keep tank cleaned . Filter already stopped working . Already looking to buy a new tank . This tank was good for a couple days and now it’s just horrible

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  • 1 out of 5 stars

    Do not recommend

    By Disappointed on Mar 13, 2021

    I bought this a while ago, but the filter and bubbler never worked. Got it for my kid as a gift. We put it together and tried working with it multiple times

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  • 1 out of 5 stars

    Fish sliced in half in the filter

    By Greta on Jan 25, 2021

    We just received the tank a couple of days ago and it was working fine, however today we found our beta fish inside the filter container sliced in half. My daughter is heartbroken since this fish was with us for almost 2 years.

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  • 4 out of 5 stars

    Great after air tube mgmt

    By Moofus on Jan 8, 2021

    My kid and I love this, and it's very aesthetically pleasing to the eye. The only drawback is how many tubes and cords there are - we used a twisty tie to keep them in the same area and so far, all has worked out well.

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  • 1 out of 5 stars


    By ferrets0and0fish on Mar 1, 2021

    10 gallon is the minimum for a Beta this is only good for snails and or shrimp

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  • 5 out of 5 stars

    Absolutely Love

    By Andie on Aug 8, 2020

    Love the size, my heater fit perfectly (it's a mini heater for a 5 gallon tank) Bubbles and LED light works great, Bubbles are a little strong, my Betta fish is a little scared but he'll get use to it. The only thing I didn't use was the filter, I'm okay without it. & You can't really see in the tank with the LED Bubbler so I added the other light on the top from my previous Betta tank. Other than those two things I Love this tank, so worth the $27 & got here in 4 days

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  • 5 out of 5 stars

    Tetra bubble aquarium

    By LadyDi on Oct 15, 2020

    My Betw , Woodie, loves his new home. He plays tag with the bubbling water. A perfect home for him.

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  • 1 out of 5 stars

    Waste of money

    By Ranie on Jul 28, 2020

    The filter and pump don’t work at all. Set everything up for it not to work. A waste of money. Thank god I didn’t put my fish in it, guess his small fish tank will have to do till his new bigger tank comes in

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  • 1 out of 5 stars

    choose between filter or air bubbles

    By Honey94 on Jul 19, 2020

    The pump and air bubbles do not work at the same time. The pump stopped working and it barely has enough pressure to make the bubbles. The pump only worked when the air bubbles aren’t circulating.

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  • 1 out of 5 stars

    Way to small for any fish

    By kat31 on Aug 31, 2020

    This aquarium is way too small to put any fish in!! As one reviewer said, it would be fine to use for low light plants and that's about it.

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