RED TAIL FISH 18.9 L Rimless Aquarium Starter Kit with Adjustable Filter and LED Light

RED TAIL FISH is a 5-gallon rimless aquarium starter kit for beginner fish keepers and planted setups, with 5 mm low-iron glass and a timed, adjustable-flow filtration and lighting setup.

• Hang-on-back power filter with adjustable flow — tailor circulation for bettas or community tanks.
• Full-spectrum LED with three light modes, five brightness levels, and an auto timer — set lighting to suit viewing and plant care.
• Clear acrylic lid, leveling mat, and hand siphon included — cover the tank, create an even base, and carry out water changes.
• Low-iron glass with 92% light transmission and a black background — view fish and plants with less green or yellow tint.
• Free replacement guarantee for a cracked or leaking tank — added assurance for the aquarium itself.
• Designed for bettas, tetras, guppies, and shrimp — a compact setup for small-space fishkeeping.

Starting an aquarium can mean choosing a tank, filter, light, and water-change tools separately. This kit brings those core components together for first-time fish keepers and compact home setups, with features for both fish viewing and plant growth. Its included equipment supports a planted aquarium as well as a small fish habitat.

What is included in the RED TAIL FISH aquarium starter kit?

The kit includes the glass aquarium, a hang-on-back power filter, a full-spectrum LED light, a clear acrylic lid, a non-slip leveling mat, and a hand siphon for water changes. The aquarium measures 14.37 x 7.87 x 10.24 inches (36.5 x 20 x 26 cm), so compare those dimensions with your intended surface before setting it up.

The mat is designed to provide a stable, even base, while the lid helps reduce evaporation and keep jumping fish inside. Remove the lid’s protective film before use. The hand siphon hose is included for aquarium water changes.

• Tank format: rimless glass aquarium.
• Suitable fish and invertebrates include bettas, tetras, guppies, and shrimp.
• The compact footprint is intended for small-space setups.

How does the filter handle water flow and debris?

The RED TAIL FISH hang-on-back filter uses a 3W motor and has a maximum flow rate of 300 L/H, with adjustable flow control. Its 0.6 m pump height and flow adjustment let you set circulation for a betta or a community tank; the filter is UL-listed.

A three-part cartridge combines a bio sponge for beneficial bacteria, activated carbon for odor and discoloration removal, and ultra-dense mesh for trapping debris. Replacement cartridges are sold separately. The filter is designed for quiet operation, and its media combines biological, chemical, and mechanical filtration in one cartridge.

• Filter type: hang-on-back power filter.
• Cartridge media: bio sponge, activated carbon, and ultra-dense mesh.
• Adjustable flow lets you moderate circulation for different aquarium inhabitants.

What lighting settings can I choose?

The RED TAIL FISH aquarium light is a 9W full-spectrum LED fixture using high-output 5730 LED chips. Choose Blue & White mode with 24 LEDs for daytime viewing, All Blue mode with 6 LEDs for moonlight ambiance, or All White mode with 18 LEDs for maximum plant growth.

Five brightness levels and a built-in 3-, 6-, or 12-hour auto timer provide options for setting the lighting period and intensity. The fixture is splash-resistant and UL- and FCC-listed. Its 4.92 ft (1.5 m) power cord offers placement flexibility, and extendable, removable brackets make installation straightforward.

• Three selectable light modes for different viewing and plant-lighting needs.
• Timer choices: 3, 6, or 12 hours.
• Light brackets are extendable and removable.

What makes the aquarium glass different?

The tank uses 5 mm thick, low-iron ultra-clear glass with 92% light transmission. Compared with regular float glass, the low-iron glass reduces the green or yellow tint, helping fish and plants appear closer to their natural colors.

A built-in black background adds contrast behind the aquarium’s inhabitants. The tank is backed by a free replacement guarantee for cracks or leaks, applying specifically to the aquarium tank.

• Low-iron glass reduces the color cast associated with regular float glass.
• The black background is built into the tank.
• The replacement guarantee covers a cracked or leaking tank.

This kit suits new fish keepers who want a compact aquarium with filtration, lighting, a lid, and basic water-change equipment in one setup. Its stated dimensions make it a defined fit for small spaces, and its included adjustable-flow filter and multi-mode light support the listed fish and planted-aquarium uses. It is a 5-gallon aquarium setup for small fish and shrimp, rather than a tank sized for larger aquatic animals.

Read our guide: A beginner’s aquarium set-up checklist: from bowl to tank