Fiberglass Rectangle Fish Tank
Aqua Tank Solutions builds durable, high-quality fiberglass tanks for aquaculture, breeding, research, and public display. Our fiberglass rectangle fish tank options offer structural strength, efficient use of space, and long-term reliability across a wide range of aquatic applications.
Each fiberglass fish tank is designed to handle everyday use in hatcheries, farms, research labs, ornamental fish displays, and aquarium facilities. We offer both standard sizes and custom fiberglass models, built with reinforced sidewalls, integrated drain options, and window panels for visibility and monitoring.
Whether you’re working on a commercial recirculating aquaculture system, a custom fish pond, or a large-scale display, our rectangular fiberglass tanks deliver performance, value, and dependability.
Custom Fiberglass Tanks for Aquaculture, Research, and Aquarium Projects
Our fiberglass tanks are designed with functionality and adaptability in mind. These tanks are used in:
- Recirculating aquaculture systems
- Ornamental fish displays
- Hatcheries raising tilapia, shrimp, or tropical fish
- Aquatic research environments
- Quarantine, breeding, or observation tanks
- Educational and public aquariums
We manufacture tanks for both indoor and outdoor use, offering protection from UV, temperature fluctuations, and mechanical damage. Each unit is built with precision and available in multiple sizes and shapes to match your project requirements.

Why Choose a Rectangular Fiberglass Fish Tank?
A rectangular fiberglass tank offers optimal space utilization, clean corner-to-corner flow, and simplified access for cleaning and inspection. These tanks are used when operational efficiency, visibility, and consistency are required.
Key advantages:
- Built from FRP (fiber reinforced plastic) for superior strength
- Rigid, gel-coated interior surface
- Compatible with standard pvc plumbing and filtration systems
- Resistant to algae, chemicals, and physical wear
- Window for easy viewing available on select models
- Free-standing or external bracing options available
All our fiberglass aquariums are built for high flow performance, durability, and ease of access for maintenance. These are a great option for aquatic labs, breeding systems, or underwater display applications.








Customize Your Rectangular Fiberglass Tank for Any Application
You can customize your fiberglass tank with the following:
- Acrylic or glass window panels
- Drain and valve components
- Overflow and backflow prevention
- Built-in mechanical or biological filtration
- Bulkhead fittings and outlet ports
- Component shelves for heaters or sensors
If your project involves raising tilapia, growing shrimp, or breeding tropical fish, we will design a tank system with the right flow, volume, and footprint.
Rectangular vs. Round Tanks – What to Choose?
Round tanks offer circular flow, ideal for specific fish breeding operations. However, rectangular tanks provide:
- Better space management
- Easier access for technicians
- Flat sides for window and panel integration
- More consistent water movement for recirculating aquaculture systems
We also offer round tanks, oval tanks, and hybrid options if needed. Ask us which design is best for your system.
Welcome to Aqua Tank Solutions – Your Source for Fiberglass Aquariums
Since 2007, Aqua Tank Solutions has supported farms, labs, hatcheries, and institutions with dependable fiberglass aquariums, tanks, and equipment. We help customers build systems from the ground up, expand capacity, or replace older tanks with new, efficient units. Every tank we sell is tested, reinforced, and built to perform. Let us help you match the right fiberglass tank to your next project.