Hexagon fish tanks are a unique and stylish way to add a touch of aquatic life to your home decor. With a 20 gallon hexagon tank, you can create a stunning underwater world that complements any room.
1. Efficient Filtration System

Ensure a healthy environment with an efficient filtration system that keeps the water clean and clear. I can’t stress enough the importance of good filtration for a thriving tank ecosystem.
Consider these options:
- Compact External Canister Filter: Keep your water pristine with a compact canister filter, perfect for smaller tanks like this.
- Submersible Aquarium Filter with Adjustable Flow: Achieve crystal clear water with a submersible filter featuring adjustable flow for optimal performance.
- Internal Power Filter for Fish Tanks: Ensure consistent filtration with an internal power filter, ideal for maintaining a clean environment.
2. DIY Hexagon Aquarium Top

Craft a unique DIY aquarium top to customize your tank’s appearance and functionality. I’ve designed tops that enhance the tank’s look while accommodating essential equipment.
Try these:
- Customizable Aquarium Lid Kit: Create a perfect fit with this customizable lid kit for your hexagon aquarium. Enhance functionality today!
- Aquarium Filter with Adjustable Flow: Maintain optimal water quality effortlessly with this adjustable flow filter designed for aquarium enthusiasts.
- Aquarium LED Lighting System: Illuminate your tank with energy-efficient LEDs for vibrant fish and plant life. Brighten your aquarium now!
3. Natural Planted Paradise

Transform your hexagon tank into a natural planted paradise with a variety of lush aquatic plants. I’ve found that using a mix of tall and short plants creates depth, bringing the hexagon shape to life.
May just do the trick:
- Aquatic Plant Substrate: Enhance plant growth and stability by choosing the right substrate for your aquatic paradise.
- LED Aquarium Lighting: Illuminate your tank’s beauty and promote plant health with adequate LED lighting.
- Aquarium Plant Fertilizer: Boost your plants’ growth and health with essential nutrients from this liquid fertilizer.
4. Colorful LED Lighting

Enhance the ambiance with colorful LED lighting that highlights the vibrant colors of your fish and plants. I enjoy experimenting with different hues to see how they change the tank’s vibe.
A few relevant products:
- Adjustable LED Aquarium Light: Transform your tank with adjustable LED lights, enhancing the colors of your fish and plants.
- Submersible LED Light Strips: Submerge vibrant LED strips to create a stunning underwater atmosphere in your fish tank.
- Remote Controlled LED Aquarium Kit: Use a remote to switch colors and moods in your tank effortlessly with this LED kit.
5. Rockscape Elegance

Incorporate elegant rock formations to create a miniature mountain landscape inside your tank. I find that carefully arranged rocks can mimic natural habitats and offer hiding spots for fish.
Possibly helpful picks:
- Aquarium Rock Decoration Set: Enhance your tank with natural rocks that mimic mountain landscapes and provide fish hiding spots.
- Aquascaping Pebbles: Use pebbles to add texture and realism to your tank’s mountain rockscape effortlessly.
- Aquarium Safe Moss: Incorporate moss to add lush greenery and natural appeal to your rockscape setup.
6. Vertical Garden

Explore the height of your hexagon tank by creating a vertical garden with tall, slender plants. This setup not only looks elegant but also maximizes the use of space.
Check these products out:
- Aquarium Plant Set: Elevate your tank’s look with tall, elegant plants perfect for a vertical garden setup.
- Aquarium Gravel: Create a natural base for your vertical garden with decorative aquarium gravel.
- Aquarium Light: Enhance plant growth and showcase your tank with a suitable aquarium light system.
7. Themed Decorations

Inject personality into your tank with themed decorations, from sunken ships to ancient ruins. One of my tanks is a whimsical underwater world that always sparks a conversation.
You might like:
- Sunken Ship Aquarium Decoration: Enhance your aquatic scene with a detailed shipwreck, adding mystery and allure to your tank.
- Ancient Ruins Aquarium Ornament: Create a captivating ancient world with ruins that bring history alive in your aquarium.
- Aquarium Plant Decorations Set: Introduce lush greenery to your tank, providing essential shelter and enhancing beauty.
8. Mossy Cliff Design

Create depth with a mossy cliff design, where layers of moss cascade down rock formations. This setup adds an element of mystery and natural beauty that I adore.
Items that may come in handy:
- Aquarium Rock Decor: Transform your tank with natural rocks, creating stunning cliff-like formations for visual impact.
- Aquatic Moss Varieties: Enhance your setup with lush, cascading moss, adding texture and depth effortlessly.
- Aquarium-safe Adhesive: Securely attach moss to rocks with this adhesive, ensuring a stable and lasting design.
9. Floating Plant Oasis

Introduce a floating plant oasis for a touch of tranquility and shade. In my experience, floating plants create a serene atmosphere and provide additional shelter for shy fish.
Useful items to consider:
- Floating Aquarium Plants: Add natural beauty and provide shade with these easy-to-maintain floating aquarium plants.
- Aquarium Plant Fertilizer: Ensure vibrant growth of your floating plants with this nutrient-rich aquarium plant fertilizer.
- Aquarium LED Lighting: Promote healthy plant growth with efficient and adjustable LED lighting tailored for aquatic setups.
10. Bubbly Atmosphere

Add a playful touch with a bubbly atmosphere using air stones or bubble wands. The bubbles create movement and interest, making the tank lively and dynamic.
A few things you might like:
- Aquarium Air Stone: Enhance your tank’s liveliness with constant bubbles. Create a vibrant and playful environment today.
- Bubble Wand for Fish Tanks: Transform your aquarium with a bubble wand for dynamic movement. Delight your fish instantly.
- Aquarium Air Pump Kit: Boost your tank’s ambiance with an air pump kit for continuous bubbles and energy.
11. Driftwood Centerpiece

A striking piece of driftwood can serve as the dramatic centerpiece in your hexagon tank. I personally love how driftwood adds a natural, rustic touch, creating a focal point that draws the eye.
Some ideas to consider:
- Aquarium Driftwood: Enhance your tank with natural-style driftwood, adding beauty and character effortlessly.
- LED Aquarium Lights: Illuminate your tank with vibrant LED lights to showcase your striking driftwood piece.
- Aquarium Plant Variety Pack: Complement your driftwood with lush, live plants for a natural and balanced aquarium aesthetic.
12. Centerpiece Fish

Choose a centerpiece fish that stands out, like a vibrant dwarf gourami. I’ve found that a standout fish adds personality and becomes the star of the tank.
Give these a look:
- Dwarf Gourami Aquarium Kit: Enhance your tank with a complete starter kit, perfect for vibrant fish like dwarf gouramis.
- Aquarium Decor Plant Set: Elevate your tank’s appeal with lush, vibrant plants for a natural underwater environment.
- High-Quality Fish Food Pellets: Ensure your centerpiece fish thrives with premium pellets designed for color and vitality.
13. Aquatic Sculpture

Add an aquatic sculpture to elevate your tank’s artistic appeal. I love how sculptures transform my tanks into art pieces that captivate attention.
A few helpful options:
- Seahorse Aquarium Sculpture: Elevate your tank’s look with a captivating seahorse sculpture, creating an artistic focal point.
- Resin Coral Decor: Enhance your aquatic scene with a durable resin coral, adding natural beauty effortlessly.
- Aquarium Stone Cave Ornament: Transform your tank into a serene retreat with a natural stone cave for fish to explore.
14. Symmetrical Plant Layout

Achieve balance with a symmetrical plant layout that mirrors the tank’s hexagonal shape. This design principle creates a harmonious and visually pleasing setup.
A few suggestions:
- Aquarium Plant Bundle: Enhance your tank’s beauty with live aquatic plants for balanced, symmetrical layouts.
- Aquascaping Rocks: Use natural rocks to create stunning symmetrical formations and visual interest in your aquarium.
- Hexagon Aquarium Tank: Optimize your setup with a hexagon tank, perfect for a harmonious plant arrangement.
15. Colorful Shrimp Colony

Watch the colors come alive with a colorful shrimp colony that adds vibrancy to your tank. These little creatures are fascinating to observe as they scuttle around.
These products might help:
- Aquarium Shrimp Food: Enhance your shrimp’s color and vitality with premium shrimp food. Ensure vibrant and healthy shrimps.
- Live Aquarium Plants: Create a lush habitat with live plants, perfect for supporting your shrimp’s natural behaviors.
- Aquarium Substrate for Shrimp: Provide an ideal substrate for your shrimp, promoting growth and maintaining water clarity.
16. Zen Sand Waterfall

Bring tranquility with a zen sand waterfall that softly flows through the tank. It’s a conversation starter that brings a touch of calm and elegance to any space.
Some handy options:
- Aquarium Sand Waterfall Kit: Enhance tranquility with a flowing sand waterfall kit, creating serene and captivating tank aesthetics.
- Aquarium Rock Decorations: Add natural elegance with rock decorations enhancing your tank’s visual appeal and fish habitat.
- LED Aquarium Lighting: Illuminate your fish tank with LED lights to highlight your stunning sand waterfall feature.