HYDQIET External Aquarium Breeding Box with 2W USB Pump, Adjustable Flow and Fry Nursery

HYDQIET External Fish Breeder Box is a hang-on aquarium nursery for breeding, isolation and supplemental filtration, with a 2W USB pump rated at 92 GPH (350 L/H).

• Three-in-one breeding, isolation and nursery chambers — separate fish for breeding, temporary care or fry rearing.
• External hang-on installation — adds dedicated fish-care space while preserving room inside the aquarium.
• Adjustable-flow USB pump — circulates aquarium water through the box at a flow you can control.
• W-shaped fry separator with 0.8–1 mm micro-slots — lets newborn fish pass into the lower nursery.
• 20-piece aquarium care kit — includes washable filter foams and tools for routine care and cleaning.

HYDQIET is designed for fishkeepers who need a separate, observable area for livebearers, newborns, new arrivals or fish needing temporary separation, without placing a breeding net or divider in the main swimming area. Its chambers also offer another use when breeding or isolation is not needed: they can hold macroalgae as a refugium or bio-media for supplemental aquarium filtration.

What can I use the HYDQIET breeder box for?

Use the HYDQIET box as a breeding and isolation space, a baby fish nursery, or a chamber for macroalgae or bio-media. Two upper compartments provide separate areas for pregnant guppies, mollies, bettas, newly introduced fish and injured fish that need temporary separation. The lower chamber gives newborn fish a dedicated nursery area. When those fish-care uses are not needed, the multi-purpose chambers can instead accommodate macroalgae or bio-media for supplemental filtration or refugium use.

• Designed for breeding, temporary isolation and care of baby fish.
• Can also serve as an algae refugium or bio-media chamber.

Will it fit my aquarium, and how does it mount?

The HYDQIET breeder box hangs on the outside of rimless aquariums and compatible framed tanks. Compare your aquarium’s rim or glass thickness with the 0.63 in (1.6 cm) maximum, and allow at least 5.9 in (15 cm) of horizontal clearance where the box will sit. The external placement keeps its dedicated chambers outside the tank’s main swimming area, while the clear PC construction makes the fish inside easy to view.

Dual shock-absorbing foam pads help reduce vibration transfer to the aquarium glass. The design includes a cover to help keep fish inside, along with two access openings for feeding and everyday care without taking off the entire lid.

• Fits aquarium rims or glass up to 0.63 in (1.6 cm) thick.
• Requires at least 5.9 in (15 cm) of horizontal mounting clearance.
• Made from high-clarity PC; includes dual vibration-dampening foam pads.

How does the pump and water flow work?

The included submersible pump moves water between the main aquarium and the HYDQIET box, and an inline valve lets you adjust the flow. The pump is rated at 2W and 92 GPH (350 L/H), and runs from a low-voltage 5V USB connection. Its 1.5 m cable connects to a standard 5V USB power source or power bank; a wall adapter is not included.

Filter foams at both the inlet and outlet help capture debris and help protect baby fish around the water openings. This circulation and foam arrangement provides water exchange through the box while creating a barrier around the inlet and outlet areas.

• USB cable included; wall adapter not included.
• Inline flow-control valve adjusts the water flow.
• Dual inlet and outlet filter foams are washable.

How does the baby fish separator work, and what comes in the kit?

The HYDQIET box uses a W-shaped separator with 0.8–1 mm micro-slots to let newborn fish move into the lower nursery while helping separate them from larger fish. The two upper compartments keep fish apart for the uses they are intended to serve, and the access openings make feeding and daily care possible without removing the full lid.

The 20-piece care kit contains 10 washable filter foams, three plastic droppers, an algae-cleaning sponge, a waste pipette, a fish net, a cleaning brush, tweezers, a water outlet lid and an extra water pump extension tube. Together, these included pieces support box setup, water-related care and cleaning tasks.

• W-shaped separator directs newborn fish toward the lower nursery.
• Kit contents include care, cleaning and pump-related accessories.

HYDQIET suits aquarium keepers who want an external space for breeding, separating fish, raising newborns or holding macroalgae and bio-media, and whose tank meets the mounting clearance and thickness limits. Its pump, adjustable flow, divided chambers and included care tools make it a purpose-built option for fish care outside the aquarium’s main swimming area.