SKU: 92392

TUBE 15 Aquarium with Standard Light - 4 gallon

$217.99

2 reviews
Color: Black
Key Features
  • THE PERFECT AQUARIUM FOR SMALL SPACES — The TUBE aquarium has cylindrical contouring and a 360-degree view, so you can easily find a space to place and admire your biOrb. The 4-gallon tank's compact size is ideal for desktop or tabletop display.
  • DURABLE CONSTRUCTION — biOrb aquariums are made from acrylic, which is 10 times stronger, 50% lighter, and 23% clearer than ordinary glass aquariums. Acrylic is also a good insulator, so you don't lose as much heat as you would with a glass aquarium.
  • FILTRATION SYSTEM IS EASY TO MAINTAIN — All biOrb aquariums have a true 5-stage filtration system including biological, mechanical, chemical, water stabilization and oxygenation that keeps it clean. The filter is conveniently located at the bottom of the aquarium, and the ceramic media surrounding it promotes the growth of beneficial bacteria.
  • LONG-LASTING LED LIGHT — The standard white LED lighting will give your biOrb a shimmering ambiance. The lighting has an easy on and off switch.
  • EVERYTHING YOU NEED TO GET STARTED, JUST ADD DECOR — Includes a 4-gallon (15 L) acrylic aquarium with a new flush base plus streamlined features and improved cord management, white LED lighting, a quiet air pump, a low-voltage 12V transformer, filter, air stone, ceramic media, starter water treatments, and instructions. Just add decorations! Also includes a 2-year warranty.
Specs

Dimensions: 11.75 x 12.5 inches (30 x 32 cm)

Volume: 4 gallons (15 L)

Lighting: White LED

Voltage: 12V DC

Warranty: 2 years limited
Cleaning & Care

Keep your fish happy and your biOrb clean and clear with routine maintenance. Depending on your choice of fish, you may only need around 15 minutes of maintenance per month. Plus, you only need a few key tools to keep it looking great.

See the instruction manual for more details.

Stock up on Service Kits so you're always prepared for a filter change!
What’s included

Aquarium
Bubble Tube
Air pump
LED lighting
Remote control
Transformer
Water treatments
Air stone
Filter cartridge
Ceramic media
Instruction manual
Must-Have Accessories
Maintenance Kit
biOrb Service Kit
biOrb Cleaning Pads - 3 Pack
Polish and Cloth Accessory
View details
4-gallons (15L)

TUBE 15

9.2-gallons (35L)

TUBE 35

Why Choose a TUBE Aquarium?

A Sleek, Cylindrical Statement

The biOrb TUBE features a clean, vertical silhouette and seamless 360-degree design that offers uninterrupted views from every angle. Its perfectly rounded form brings a modern sculptural feel to your space, an elegant way to showcase aquatic life while adding calm and clarity to any room.

All-in-One, Easy to Set Up

Every biOrb aquarium comes with everything you need to get started—filtration, lighting, and air pump included. Just add water, choose your décor, and you’re ready to enjoy your new underwater world. No complicated parts, no guesswork. It’s nearly effortless from day one.

5-Stage Filtration Design

Our filtration system is located at the bottom of the tank (where waste naturally settles) for maximum effectiveness. It combines biological, mechanical, chemical, water stabilization, and oxygenation to keep your aquarium clean and your fish thriving.

Crystal-Clear, Durable Acrylic

Crafted from premium acrylic that’s up to 10x stronger and 23% clearer than glass. It offers brilliant visibility from every angle and helps insulate water temperature, adding stability to your aquatic environment all year round.

Quick, Clean Filter Changes

Designed with simplicity in mind, our filter cartridges are easy to replace—no tools or messy cleanup required. It’s a cleaner, faster way to maintain your tank without disrupting your aquascape.

Low Voltage LED Lighting

Every biOrb includes low voltage LED lighting. Choose from standard white LEDs or upgrade to MCR (Multi-Color Remote) models that let you shift between 16 colors and simulate natural day-to-night lighting cycles.

A Sleek, Cylindrical Statement

The biOrb TUBE features a clean, vertical silhouette and seamless 360-degree design that offers uninterrupted views from every angle. Its perfectly rounded form brings a modern sculptural feel to your space, an elegant way to showcase aquatic life while adding calm and clarity to any room.

All-in-One, Easy to Set Up

Every biOrb aquarium comes with everything you need to get started—filtration, lighting, and air pump included. Just add water, choose your décor, and you’re ready to enjoy your new underwater world. No complicated parts, no guesswork. It’s nearly effortless from day one.

5-Stage Filtration Design

Our filtration system is located at the bottom of the tank (where waste naturally settles) for maximum effectiveness. It combines biological, mechanical, chemical, water stabilization, and oxygenation to keep your aquarium clean and your fish thriving.

Crystal-Clear, Durable Acrylic

Crafted from premium acrylic that’s up to 10x stronger and 23% clearer than glass. It offers brilliant visibility from every angle and helps insulate water temperature, adding stability to your aquatic environment all year round.

Quick, Clean Filter Changes

Designed with simplicity in mind, our filter cartridges are easy to replace—no tools or messy cleanup required. It’s a cleaner, faster way to maintain your tank without disrupting your aquascape.

Low Voltage LED Lighting

Every biOrb includes low voltage LED lighting. Choose from standard white LEDs or upgrade to MCR (Multi-Color Remote) models that let you shift between 16 colors and simulate natural day-to-night lighting cycles.

Styled Aquariums Made Simple

Love the full setup? Get the entire look in just a few clicks, or mix and match individual pieces to make it your own.

Shop All Aquarium Looks
TUBE 35 - Whimsical Wonder
$501.53 $509.73
Sale

Styled Aquariums Made Simple

Love the full setup? Get the entire look in just a few clicks, or mix and match individual pieces to make it your own.

Shop All Aquarium Looks
TUBE 35 - Whimsical Wonder
$501.53 $509.73
Sale

Shop More Underwater Worlds

TUBE 15 Aquarium with Standard Light - 4 gallon
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TUBE 15 Aquarium with MCR Light - 4 gallon
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TUBE 35 Aquarium with Standard Light - 9.2 gallon
$279.99
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TUBE 35 Aquarium with MCR Light - 9.2 gallon
$304.99
Black White

What’s Next? Personalize Your Aquarium

Curate Your Underwater World

Your aquarium should feel like a living piece of art. Our curated décor collections let you express your style—lush plants, sculptural centerpieces, and natural elements designed to enhance both the tank and the lives inside it. Mix, match, and make it yours.

Shop Aquarium Decorations

Smart Add-Ons, Seamless Upgrades

From replacement filters to upgraded lighting, our accessories keep your biOrb running beautifully. Every piece is designed to fit perfectly and function effortlessly, so you can spend less time adjusting and more time enjoying your aquatic escape.

Shop Aquarium Accessories

Questions? We've Got You.

Are biOrb aquariums freshwater and saltwater compatible? 

Yes. biOrb aquariums come with everything needed for a freshwater setup. For a saltwater setup, you can adapt the Service Kit by removing the foam. You would then need to source the salt and hydrometer at your local pet store. If a higher-intensity light is needed, there are a few add-ons you could source. We recommend using an 8-gallon or larger biOrb aquarium but always consult your local saltwater aquarium shop for best results. See our tips and tricks for more details.

How often do I need to clean a biOrb Aquarium?

We recommend a simple cleaning routine every 4–6 weeks. biOrb aquariums feature an integrated 5-stage filtration system that keeps water clearer for longer, minimizing maintenance. With our biOrb Service Kits, replacing the filter is quick and mess-free. Just a few minutes of care helps keep your aquarium healthy and beautiful.
Is the TUBE a good choice for beginners?

Yes, the biOrb TUBE is perfect for beginners and hobbyists alike. It comes as a complete kit with everything you need to get started, including a filter, air pump, LED lighting, and water treatments. Its all-in-one design removes the guesswork, making it easy to set up and even easier to enjoy.
What kind of fish can I keep in a TUBE aquarium?

The type and number of fish will depend on the size you choose:

  • TUBE 15 (4 gallons): Ideal for small shrimp, snails, or a single betta.
  • TUBE 30 (8 gallons): Great for a small group of white cloud minnows or tetras.

We always recommend cycling your tank first and checking with your local aquatic specialist to make sure your fish are a good match.
What makes the TUBE different from other biOrb aquariums?

The TUBE stands out with its smooth, elliptical shape, offering a softer, more organic look compared to round styles like the HALO or elliptical forms like the LOOP. Its 360° view means you’ll enjoy every detail of your underwater landscape from any angle, while the elongated silhouette creates a sleek, modern statement.

Each biOrb aquarium shares the same filtration technology, high-quality acrylic build, and easy-care promise—so you can choose the shape that best suits your space and style.
Does the MCR light turn off completely at night?

Not automatically. The MCR timer ends in a soft blue “night mode,” not full darkness. This setting is designed to mimic moonlight and provide a calming nighttime environment for your aquarium. If you prefer complete darkness, simply turn the light off using the remote or inline switch.
Does the MCR timer work with color options?

No, the timer function works with white light only. When you set a timer (8, 10, 12, or 14 hours), your biOrb will follow a natural white-light cycle starting in blue, rising to white, then returning to blue “night mode.” Colored lighting options must be selected and adjusted manually.

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Overall rating: 3.5 / 5 from 2 reviews.

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Reviews

Eye Catching & Durable Aquarium

"I absolutely love my Biorb Tube 15L! It’s beautifully designed, well-built, durable, and truly eye-catching. The unique aesthetic consistently gets compliments, and I’m always being asked on social media about my Biorb aquariums. With 16 Biorbs in my collection, I’ve developed a genuine passion for showcasing how easy, versatile, and fun Biorbs are to set up and decorate. I love creating beautiful aquascapes and sharing my fishkeeping journey with others. If Biorb is looking for an enthusiastic ambassador who can authentically showcase your aquariums, create engaging social media content, demonstrate setup and decorating ideas, and inspire others to start their own Biorb journey… I’m your person! I’d love the opportunity to partner with Biorb and share my passion with an even larger audience."

— Bri T. (5/5)

Tube 15

"Very disappointed, very loud, probaly would not do agsin."

— Melanie L. (2/5)

Q&A

How do I choose to make it saltwater or freshwater? What do I buy differently for either option?
Hello Kelli. You can use any of the biOrbs with fresh or salt water. The aquariums come with everything needed for a freshwater setup. For saltwater tanks, you could adapt our current Service kit by removing the foam and leaving the same chemical media. You would just then need to source the salt and hydrometer at your local pet store. We hope this helps!
Hi , Is this battery operated or does it have to be plugged into an outlet
Hello Amanda. Our biOrb aquariums come with a low voltage 12V transformer that will plug into an outlet. We hope this helps!