Uotyle Acrylic Breeding Box

The clear acrylic sides make it easier to keep an eye on fry or an isolated fish without blocking your view of the tank. Three sides of stainless steel mesh allow water to circulate through the box.

Its compact shape is designed to hang inside an aquarium, with a hook for placement and removal. The listed fit is for tanks with walls up to 0.9 inches thick.

Te encaja si you need a separate space for newborn fish, shrimp or a small fish that needs temporary isolation. No te encajará si the fish needs more room than a 5.9-inch cube can provide.

Key specifications

The box measures 5.9 × 5.9 × 5.9 inches and is described as suitable for 10–40 gallon tanks. Its clear acrylic construction gives you a direct view inside, while the three-sided stainless steel mesh supports water flow between the box and the aquarium. A removable, large-diameter cover provides access from above, the rounded edges are intended to reduce the risk of delicate fins or scales catching on sharp corners.

The product name lists an air stone, and the description says the box can be used in freshwater or saltwater. Its hook is intended for quick installation, but the tank wall thickness still matters: the stated limit is 0.9 inches. The product is described as suitable for fry, shrimp, guppies and fish needing separation, including sick or aggressive fish. Its small internal space makes it a focused isolation or breeding area, not a substitute for a larger habitat as a fish grows.

Who it’s for

This setup makes most sense for aquarium keepers who want to observe newborn livebearer fry, including guppies, while keeping them apart from larger fish. It may also suit a short-term separation need for a small fish, or for shrimp, where a shared tank presents a risk of attacks. The transparent walls help with watching the animal without having to lift the cover each time.

Compared with a basic divider that separates only part of a tank, this box creates an enclosed area with mesh sides for water circulation. That approach is useful when you want to keep a particular animal in view and contained. It is less suited to housing a larger fish for an extended period: the listed dimensions are compact, and the description does not provide a stocking guide. The safety and survival benefits are claims made by the manufacturer, rather than a guarantee for every tank or species.

Everyday use

The hook lets you hang the box on the aquarium wall and remove it when the isolation period is over. For example, it can give newly born guppy fry a separate place in the same aquarium while you monitor them through the clear sides. The removable cover gives access from above, and the mesh panels are intended to keep water moving through the enclosure.

Before choosing it, match the 0.9-inch wall limit to your tank and consider the fish’s size and how long it will need to stay inside. The listing also names clownfish and small groupers, but the compact dimensions are a reason to assess the individual fish rather than assume every named species will suit the enclosure. Use is described for freshwater and saltwater tanks, specific setup or care instructions are not provided.

Three practical questions

Is an air stone included? The product name identifies it as a breeding box with an air stone. The description does not provide further details about the stone or its operation.

Will it fit my aquarium? It is listed for 10–40 gallon tanks, with tank walls up to 0.9 inches thick. Check the wall thickness as well as the available space for hanging the box.

Can it be used in saltwater? The description says it is suitable for both freshwater and saltwater environments. It does not specify further setup requirements for either type.

Veredicto final

This Uotyle box is worth considering if your main need is a visible, hang-in enclosure for fry or temporary separation, and its dimensions and hook fit your aquarium. The mesh sides and clear acrylic make that use more practical than an opaque container or a simple open divider. Skip it if you need a spacious long-term home, or if your tank wall exceeds the stated fit limit, the listing does not give more detail on capacity by fish size.