100 Gallon Hexagon Fish Tank – A Guide To Creating A Stunning Vertical
If you have ever gazed at a standard rectangular aquarium and felt something was missing, you aren’t alone. Most hobbyists start with basic shapes, but there comes a time when you want your living room centerpiece to truly command attention.
Agreeing to take on a 100 gallon hexagon fish tank is a bold move that elevates your home decor while providing a unique challenge for your aquatic inhabitants. These tanks offer a stunning vertical perspective that is hard to replicate, turning your fish into floating jewels in a grand, multi-faceted display.
However, tall tanks come with unique maintenance requirements and structural considerations. In this guide, we will walk you through everything you need to know to master the vertical aquatic landscape and keep your ecosystem thriving for years to come.
Understanding the Unique Dynamics of Your 100 Gallon Hexagon Fish Tank
The most immediate difference you will notice is the verticality. While a standard 100-gallon aquarium is often wide and long, a hexagon footprint focuses on depth and height.
This shape changes how water chemistry and light penetration work. Because the tank is deep, you need to be very intentional about your equipment choices to ensure that the water at the bottom remains as oxygenated as the water at the top.
Addressing the “Dead Zone” Problem
In tall, hexagonal aquariums, water circulation can be tricky. If your filter output is too weak, debris can settle in the corners or at the very bottom, leading to nitrate spikes.
We recommend using a canister filter with a high flow rate and an adjustable spray bar. By angling the spray bar toward the middle-depth, you can create a gentle spiral current that keeps detritus in suspension until it hits the intake.
Lighting and Planting Strategies for Deep Tanks
Lighting a 100 gallon hexagon fish tank requires more than just a standard LED strip. Because the water column is so deep, light intensity drops off significantly by the time it reaches the substrate.
If you plan on keeping high-light aquatic plants like Ludwigia or Hemianthus callitrichoides, you will need specialized, high-PAR (Photosynthetically Active Radiation) lighting. Avoid generic “budget” lights that are meant for 12-inch deep tanks; they simply won’t penetrate the depths of a tall hexagon.
The Best Plants for Vertical Displays
Stick to plants that appreciate the height. Vallisneria is a classic choice for the background, as it will grow toward the surface and create a beautiful, waving curtain.
For the mid-ground, consider using hardscape like tall driftwood or spider wood. You can attach Anubias or Java Fern to the wood at various heights, creating a “staircase” effect that draws the eye upward.
Stocking Considerations for a 100 Gallon Hexagon Fish Tank
When selecting your residents, keep the tank’s geometry in mind. You have a massive amount of vertical swimming space, but the footprint (the surface area at the bottom) is actually smaller than that of a rectangular tank of the same volume.
Because oxygen exchange happens primarily at the surface, you should avoid overstocking the bottom levels. Instead, focus on a community that utilizes different strata of the water column.
- Top Level: Hatchetfish are excellent for the top, as they rarely stray from the surface.
- Mid Level: Schools of Tetras or Rasboras look incredible in a 100 gallon hexagon fish tank, as they will school in a circular pattern around the center of the tank.
- Bottom Level: Corydora catfish or small shrimp colonies are perfect, provided you maintain a clean substrate.
Maintenance Tips for Tall Aquariums
Maintenance in a deep tank is physically different. You will likely need long-handled aquarium tools—think 20-inch or 24-inch tweezers and scrapers.
Don’t underestimate the difficulty of reaching the bottom corner of a hexagon tank. A sturdy step stool is a mandatory piece of equipment for any aquarist working with a tank of this height.
Water Changes and Substrate Care
When performing water changes, ensure you are using a gravel vacuum that has a long enough tube to reach the bottom without submerging your entire arm.
Focus your cleaning on the corners. Because of the hexagonal shape, water flow often slows down in the angles, allowing waste to accumulate. A quick pass with your vacuum during every weekly 20% water change will keep your parameters rock-solid.
Safety and Structural Integrity
A 100-gallon tank weighs over 1,000 pounds when filled with water, substrate, and decorations. A hexagon tank places a significant amount of pressure on a smaller surface area compared to a long tank.
Ensure your stand is specifically designed for a hexagon tank. Never attempt to place a heavy glass tank on furniture not rated for aquarium use. Check the floor beneath the tank; if you are on a second floor, ensure you are positioned over a joist.
Frequently Asked Questions (FAQ)
Is a 100 gallon hexagon fish tank good for beginners?
While the volume is large and forgiving, the maintenance of a deep tank requires some extra effort. If you are comfortable using long-handled tools and setting up a canister filter, you can absolutely succeed as a beginner.
How do I clean the glass in such a tall tank?
Use a magnetic glass cleaner with a long handle. It allows you to scrub the bottom without getting your arms soaked, and it’s the most efficient way to keep those six panes of glass crystal clear.
What is the biggest challenge with this tank shape?
The biggest challenge is gas exchange and circulation. Because the footprint is smaller, you have less surface area for oxygen to enter the water. Ensure you have plenty of surface agitation, either through a spray bar or an air stone, to keep your fish healthy.
Can I keep Goldfish in this tank?
We generally advise against it. Goldfish produce a high bioload and prefer surface area over depth. A 100 gallon hexagon fish tank is better suited for community tropical fish that enjoy vertical swimming space.
How often should I test the water?
In a new setup, test your water twice a week. Once the tank is cycled and stable, a weekly test before your water change is perfect for keeping track of nitrate levels.
Final Thoughts
The 100 gallon hexagon fish tank is truly a show-stopper. While it demands a bit more planning and the right set of tools, the visual reward is unmatched.
By prioritizing strong water circulation, choosing the right vertical-loving plants, and respecting the weight of your setup, you can create a thriving underwater world that acts as the heart of your home. Take your time with the aquascaping, enjoy the process, and don’t be afraid to reach out to the community if you run into a snag. Happy fish keeping!
