IceCap All In One Glass Aquarium - 20 Gallon

The IceCap All In One Glass Aquarium - 20 Gallon is a rimless cube-style AIO aquarium built for freshwater, planted, saltwater, and reef-style aquarium displays. It features low-iron viewing glass, a spacious integrated rear filtration section, included return pump, plumbing, mesh sock pre-filter, and a pre-installed self-leveling mat for a clean aquarium setup without a separate sump.

IceCap 20 Gallon AIO Rimless Cube Overview

More room in a compact cube format: The 20 gallon IceCap AIO provides a larger footprint than the 10 gallon model while still keeping the clean cube-style presentation that works well for modern aquarium displays. Its 18" x 18" footprint gives more space for aquascaping, livestock planning, planted layouts, rock structures, and coral placement while keeping filtration hidden in the rear chamber system.

Low-iron glass for clearer viewing: The front and side panels are made with low-iron glass to improve viewing clarity and reduce the green tint commonly seen in standard glass. This is especially valuable for reef aquariums, planted aquascapes, and display tanks where colour accuracy, coral fluorescence, plant tones, and fish colour are part of the visual appeal.

Spacious rear filtration chambers: The integrated all-in-one filtration design includes a pre-filter chamber, larger central filter chamber, and return pump chamber. This layout allows the aquarium to operate as a complete system while still giving the aquarist room to customize filtration media, upgrade equipment, and organize rear-chamber accessories. The 20 gallon size is well suited to hobbyists who want more stability and aquascaping flexibility than a smaller nano cube while keeping the system simple.

20 Gallon IceCap AIO Features

• Integrated rear filtration system: The built-in AIO chamber design keeps mechanical filtration, media, plumbing, and the return pump behind the display area for a cleaner look.
• Low-iron front and side panels: Clearer viewing glass helps fish, coral, plants, and hardscape appear brighter and more accurate through the main viewing sides.
• Rimless cube design: The 18" x 18" footprint provides an attractive display shape with more aquascaping room than smaller nano systems.
• Large center filter chamber: The 8.2" long filter chamber gives useful space for custom media choices, helping the aquarium adapt to freshwater, planted, saltwater, or reef applications.
• Included mesh sock filtration: The 200 micron mesh sock helps remove suspended particles before water moves through the rest of the rear filtration system.
• Included return pump and plumbing: The tank includes the core return components needed for basic water circulation through the rear filtration chambers and back into the display.
• Pre-installed self-leveling mat: The mat helps support the bottom of the aquarium when the tank is placed on a suitable aquarium-rated stand or cabinet.
• Flexible system type: The 20 gallon size can support carefully planned freshwater displays, planted aquariums, small saltwater systems, and nano reef-style layouts with appropriate lighting, flow, filtration, and stocking.

IceCap All In One Glass Aquarium - 20 Gallon Specifications

• Product type: All-in-one rimless glass cube aquarium
• UPC: 810127680517
• Manufacturer SKU: IC-AIO20G
• J&L SKU: AQ-ICAIO020
• Display volume: 20 gallons
• Tank dimensions: 18" L x 18" W x 16" H
• Glass thickness: 6 mm low-iron glass
• Pre-filter chamber dimensions: 3.2" L x 3.2" W x 15" H
• Filter chamber dimensions: 8.2" L x 3.2" W x 15" H
• Pump chamber dimensions: 3.75" L x 3.2" W x 15" H
• Included filtration: Mesh 200 micron filter sock
• Return pump: Included
• Application: Freshwater, planted, saltwater, and reef-style aquarium displays

20 Gallon AIO Compatibility and Setup Notes

Support the aquarium correctly: The IceCap All In One Glass Aquarium - 20 Gallon must be placed on a level, aquarium-rated stand or cabinet capable of supporting the filled aquarium, aquascape, water, equipment, and livestock. The pre-installed mat supports the aquarium base, but it does not make an unsuitable piece of furniture safe for aquarium use.

Customize filtration to the aquarium type: The rear filter chamber can be arranged around the needs of the system. Freshwater and planted aquariums may use biological media, sponge, floss, or chemical media, while reef and saltwater systems may use mechanical filtration, media baskets, carbon, phosphate media, or compact rear-chamber equipment where compatible.

Plan evaporation and water level management: All-in-one aquariums rely on stable rear chamber water levels, especially in the return pump chamber. For saltwater systems, evaporation changes salinity and can expose the return pump if not managed. An auto top-off system is often helpful for maintaining stability in reef or marine applications.

Setting Up the IceCap 20 Gallon AIO Aquarium

Position the aquarium on a level aquarium-rated stand, rinse the tank and included components with clean freshwater, and confirm the return pump, plumbing, sock pre-filter, and rear chamber flow path are installed correctly. Add substrate and aquascape, fill with conditioned freshwater or properly mixed saltwater, and run the return system fully submerged to confirm proper circulation. Allow the aquarium to cycle and stabilize before adding fish, coral, shrimp, or other livestock.

What's Included

• 1 x All-In-One Glass Aquarium
• 1 x Return Pump
• Plumbing
• 1 x Sock Pre-filter
• 1 x Self-leveling Mat pre-installed