Collection: 51 to 100 Gallons

51 to 100 Gallons – Mid-Size Reef Aquariums

Step up to the perfect balance of size, stability, and beauty with our 51 to 100-gallon reef aquarium systems. Designed for hobbyists who want more room for coral growth and aquascaping creativity, these tanks provide the ideal foundation for thriving reef ecosystems.

Explore Red Sea and Waterbox reef-ready systems built for superior performance and modern aesthetics. Each system features high-clarity glass, integrated filtration, and smart plumbing — offering easy setup and reliable operation for both LPS and SPS corals.

Enjoy the flexibility to build a stunning display with ample swimming space for fish and the stability larger water volumes provide.

Create your dream reef — premium, powerful, and perfectly sized.