When your fish is pregnant and about to give birth, having a breeding box inside an aquarium or tank is useful. Breeding a couple of fish is not difficult, but what is more difficult is keeping the baby fishes all alive. This is when you need a breeding box the most. Breeding box helps keep the fry and adult fishes separated until the fry grow big enough to survive on their own. In the list below, you will find 10 best breeding boxes available on the market for you to choose from.


Best Breeding Box in 2020

10. Finnex External Refugium Breeder Hang-on Box

Finnex External Refugium Breeder Hang | breeding boxes

This external hang-on box is a great product for an add-on to your tank. As the name suggested, you can use it to separate your fish when it is pregnant. It is to provide a safe environment for baby fishes to grow. Moreover, this multi functional tank can also be used to store vulnerable or sick fish.

Features
  • The breeding box dimension is 10.25” x 5.5” x 5”.
  • It is a multi functional breeding box.
  • It is made of transparent material.
  • Implemented with an air pump system from the main tank to the box.

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9. POPETPOP Fish Breeding Box

POPETPOP Fish Breeding Box | breeding boxes

This multi-purpose box will be a safe hidden place for newborn baby fishes, sick fishes, or injured fishes. You can safely place them inside the box and let them naturally grow or heal until they are strong enough to survive on their own.

Features
  • It is made of transparent acrylic, which makes it observable from outside.
  • The height is adjustable according to the water level with its hanging hook.
  • It comes up 4 suction cup for attaching the box to the aquarium wall.
  • The box size is 11.5” x 5.9” x 6.1”.


8. Petforu Breeding Box 5pcs

Petforu Breeding Box 5pcs, | breeding boxes

This functional yet minimalist design breeding box is great for keeping your reptile pet in check. With its transparency black box, you can easily observe what your reptile pet is doing from the outside. You also store small insects as food storage for your reptile.

Features
  • It can be a temporary home for your reptile.
  • The unit size is 6.69”x4.13”x2.76”.
  • It is a 2-in-1 function as it can store reptile food as well as water.
  • You will get 5 breeding boxes all at once.


7. Marina Hang-On Breeding Box

Marina Hang-On Breeding Box | breeding boxes

Marina hang-on breeding box is purposely designed for breeding fish, shrimp, or other marine life. It is the hang-on breeding type that can be placed outside of the aquarium for viewing and easy-maintaining purpose. You can also extend the oxygen pumper from the aquarium to the box.

Features
  • It is a safe and secure tank for separating fishes and other marine lives.
  • The size of the box is quite space-saving.
  • It can be attached to the main aquarium and its oxygenated water.
  • It can contain up to 0.3 gallons of water.


6. Petzilla in-Tank Aquarium Breeder Box for Fish Tank

Petzilla in-Tank Aquarium Breeder Box for Fish Tank | breeding boxes

The Petzilla can be used to separate egg-laying fishes such as bettas, peacocks or killifish, etc. It helps to increase the survival rate of baby fish from attacks of adult fishes. You can also separate small fishes, aggressive fishes, or injured fishes in this multi-purpose tank.

Features
  • The material of the box is made of high-quality acrylic.
  • It is perfect for isolating fishes that need to be separated.
  • You can connect the air pump from your main aquarium.
  • 3 choices of size are available to choose from.


5. Senzeal X-Large Aquarium Breeder Box Fish

Senzeal X-Large Aquarium Breeder Box Fish | breeding boxes

Senzeal Isolation box is another great product that you should install inside your tank. It is used to keep adult fish from attacking newborn fry to increase their survival rate. You can also keep aggressive fish in this box from the rest of the tank.

Features
  • It has multiple layers to separate mother fish from baby fishes.
  • It is made from a plastic Pasteur pipette.
  • You can attach this box to the wall with provided suction cups.
  • Its purpose is to provide a safe environment for vulnerable fish.

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4. Lee’s Net Breeder

Lee's Net Breeder | breeding boxes

Unlike any other products we have mentioned, this Lee’s Net Breeder is a fine nylon mesh net. It is a net box that you can put inside your tank to separate vulnerable fish for their survival. You can use the box as a temporary second home for baby fishes or even injured fishes.

Features
  • It is made of high-quality nylon net.
  • It is designed to allow water in the tank to flow freely.
  • Comes with a set of locking legs to ensure stability.
  • It is very easy to install.


3. Lefunpets Aquarium Fish Breeding Box

Lefunpets Aquarium Fish Breeding Box | breeding boxes

This multi functional breeding box is very easy to set up and works perfectly. You can just let the box sink slowly inside the aquarium until aquarium water fills up the box, then it will float onto the surface and stay floating.

Features
  • It has small gaps that allow water flow but prevents small fishes from exiting.
  • It is made of transparency crystal clear materials.
  • Suitable for both salt and freshwater aquarium.
  • It is designed for saving space inside the aquarium.


2. ZISS BL-2 EZ Breeder Fish

ZISS BL-2 EZ Breeder Fish | breeding boxes

This is a great product from Ziss that works for both beginner and experienced fish keepers. It helps add additional space to your tank with its functional adaptability. It also helps add beauty to your tank with its stylish design.

Features
  • Two stainless steel meshes are attached on both sides for further connection if you wanted to.
  • It can be attached directly inside the take with an adjustable holder.
  • You can also attach the box to the tank with a suction cup.
  • It can contain up to 0.63 gallons of water.


1. Capetsma Fish Breeding Box

capetsma Fish Breeding Box | breeding boxes

If you are looking for a great fish box to separate baby fish from being eaten by adult fish, then you have come across this perfect choice. It has two sections inside one box that is very convenient to separate fish eggs from adult fish.

Features
  • It comes from crystal clear acrylic that makes view inside the box enjoyable.
  • The fish eggs will automatically fall into the safe bottom section.
  • With 2 handles, the box floats inside the aquarium.
  • Beside floating, you can stick the box to the aquarium wall with the suction cup.

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In this list, we have talked about 10 best breeding boxes out there. As you can see from above, this list is full of convenient and compatible breeding boxes for both beginner and veteran fish keepers. Before choosing the right box, you must understand your own need first.

List down things that you are looking for breeding boxes, and compare them with boxes to find the most compatible one that suits your need. We do hope you will take our choices on this list above into consideration.

Have a nice day, and enjoy your shopping!