BitMit 11.4 L Rimless Glass Aquarium with Ultra-Clear Low-Iron Glass

The BitMit 3-gallon (11.4 L) rimless glass aquarium is a desktop tank for bettas, shrimp, snails, aquatic plants and other aquarium setups, made with 5 mm low-iron glass and curved front corners.

• Over 91% light transmittance through low-iron glass — see aquarium scenes with clear, bright visibility.
• Thermally bent, frameless glass — curved front edges create a continuous viewing surface without sharp front corners.
• 5 mm-thick glass — provides the tank’s glass construction for a small aquarium setup.
• Glass-only tank with a protective mat included — choose your own filter, lighting and other setup components.
• 3-gallon capacity, with 6- and 10-gallon sizes also available — choose a tank size to suit your setup.

This aquarium is made for people who want a compact glass tank with an unobstructed view of its aquatic environment. Its rimless form suits a desktop, shelf or countertop, while the simple glass construction leaves the equipment and aquascape choices in your hands. Use it as a betta aquarium, shrimp tank, planted setup or home for snails and other aquatic pets.

What makes this aquarium’s glass clear?

BitMit uses ultra-clear low-iron glass with over 91% light transmittance. Its lower refractive index compared with standard glass is designed to show underwater scenery more realistically, with less visual distortion from the tank glass. Thermal bending creates the curved front section while keeping the tank rimless.

• Low-iron glass is the material used for the aquarium.
• The front two sides are curved; the back two sides meet at right angles.
• The curved edges are smooth to the touch.

What size and aquarium setups does it suit?

This version holds 3 gallons (11.4 L) and is intended for compact desktop and small-space aquarium setups. The product range also includes 6-gallon (22.7 L) and 10-gallon (37.9 L) options. The tank can be used for bettas, goldfish, shrimp, snails, aquatic plants, freshwater setups or a saltwater starter arrangement.

• Choose the 3-gallon version for the capacity shown in this product title.
• Use the aquarium as a shrimp tank, betta tank or planted aquarium.
• Its frameless shape can sit on a desk, shelf or countertop.

What comes with the BitMit aquarium?

The package includes the glass aquarium and a protective mat; it does not include a filter, light or lid. The mat is intended to help prevent sliding and protect the surface beneath the tank, while the glass-only format lets you select equipment and decorations for your own setup.

• Included: glass aquarium and protective mat.
• Not included: filter, aquarium light or lid.
• The tank’s equipment and aquascape are left for you to customize.

How does its glass design differ from acrylic tanks?

BitMit’s aquarium uses glass rather than acrylic, and the glass is designed to resist scratches and yellowing over time. Its minimalist frameless profile also avoids the look of a bulky frame, making the tank a visible part of a room’s decor as well as an aquarium.

• Rimless glass construction.
• Curved front edges with right-angled rear corners.
• Designed for display in home or office settings.

This tank suits aquarium keepers who want a compact glass display and prefer to select their own filter, lighting and decorations. Its 3-gallon capacity, curved-front low-iron glass and included protective mat make it a defined starting point for a customized desktop aquarium, rather than a complete equipment kit.

Read our guide: Aquascaping a freshwater tank: substrate, stone, wood and light