101-150 Gallon Aquariums

16 Large saltwater reef tanks from 101 to 150 gallons
This size range is perfect for hobbyists ready to take the next step in their saltwater journey. With more room for rockwork, coral growth, and a wider variety of fish, 101 to 150 gallon aquariums offer a strong foundation for serious reef or fish-only syst... Read more Show less

This size range is perfect for hobbyists ready to take the next step in their saltwater journey. With more room for rockwork, coral growth, and a wider variety of fish, 101 to 150 gallon aquariums offer a strong foundation for serious reef or fish-only systems.
 

These tanks give you the space to run more advanced equipment, maintain stable parameters, and create a display that really stands out. Whether you’re planning a centerpiece for your home or building out a dedicated fish room, this collection has plenty of solid options to work with.

Nano Aquariums

Nano Aquariums

Compact saltwater reef tanks for desktops and small spaces
Skip to results list

Filters

16 items

Filter

Dive deeper

More info and buying tips

Choosing a 100–150 Gallon Aquarium

A 100–150 gallon aquarium offers more water volume, stocking room, and aquascaping flexibility than a smaller system while remaining practical for many dedicated home installations. Compare each aquarium by its exact dimensions, cabinet footprint, included filtration, plumbing layout, and access for maintenance—not volume alone.

What to Compare Before Buying

  • Footprint and placement: Confirm the tank and stand dimensions, filled system weight, doorway clearance, floor support, and service space around the cabinet.
  • Included equipment: Check whether the system includes a stand, sump, plumbing, return pump, screen top, or other components so complete-system pricing is compared accurately.
  • Livestock plan: Match the tank length, swimming room, rockwork, and open sand area to the adult size and behavior of the fish and corals you intend to keep.
  • Maintenance access: Leave enough room to remove filter media, service pumps and skimmers, reach plumbing unions, and work inside the stand.

Plan the Supporting Equipment

If you prefer a system with integrated components, compare our all-in-one aquariums. For larger-system stability and maintenance, review aquarium controllers and protein skimmers sized for the system’s actual water volume and livestock load.

Before ordering, verify the manufacturer’s specifications for dimensions, capacity, included components, warranty, freight delivery, and installation requirements. Contact Top Shelf Aquatics if you need help comparing systems for a reef, mixed reef, or fish-focused display.