Fish Breeder Box Fish Hatchery Floating Fish Breeding Box with Removable Grating Perfect Fish Tank Divider for Agreesive Injured Pregnant Fishes
Condition: New
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Availability:
In Stock.
Arrives
Monday, Jun 1
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Size: L
Features
- Safe and Upgraded Design: Made of High quality cell cast crystal acrylic, Exquisite workmanship, Inner Size for fish to swim : 9.0" x 4.7" x 5.1" ( L x W x H ),Safe and secure for breeding, isolating or acclimating fish, favorable vents allow optimum water flow and easy to observe your baby fish.
- Must-have for pregnant fishes: This fish breeder is a Hatchery for viviparous fish, such as bettas, guppies, medaka, ect, can protect new born fry from being eaten, improve the survival rate of juvenile fish.
- Multi-functional: This breeder box for fish tank comes with self-contained isolation plate, can reduce danger from aggressive fishes, protect injured fish, small fish, shrimp, and other sea clownfish
- Space-saving & Self-floating: This fish isolation box can be secured to the aquarium wall with the suction cups. 2-layer combination does not occupy space.the grating in the bottom prevents soiling of the box by food residues and excrement.
- Easy Operation: 3 mins assembly / disassemble for cleaning. (First time may take about 10 mins to remove protection layers from acrylic). Removable divider customize size and number of chambers for different needs
Brand: capetsma
Material: Acrylic
Tank Volume: 218 Cubic Centimeters
Special Feature: Lightweight
Product Dimensions: 4.7"W x 5.1"H
Item Weight: 0.26 Kilograms
Shape: Rectangular prism
Specific Uses For Product: Pregnant fish protection, Aggressive fish protection, Injured fish protection
Style: Modern
Color: Blue
Is Discontinued By Manufacturer : No
Product Dimensions : 11.8 x 4.7 x 5.1 inches; 9.17 ounces
Date First Available : May 14, 2019
Manufacturer : capetsma
Best Sellers Rank: #17,467 in Pet Supplies (See Top 100 in Pet Supplies) #6 in Fish Breeding Tanks
#6 in Fish Breeding Tanks:
Customer Reviews: 4.2 4.2 out of 5 stars (6,798)
Brand Name: capetsma
Included Components: suction cups
Manufacturer: capetsma
Unit Count: 1.0 Count
Item Shape: Rectangular prism
Product Style: Modern
Color: Blue
Additional Features: Lightweight
Specific Uses For Product: Pregnant fish protection, Aggressive fish protection, Injured fish protection
Vivarium Type: Fish Breeding Tank
Target Species: Fish
Tank Volume: 218 Cubic Centimeters
Item Dimensions L x W x H: 4.7"W x 5.1"H
Item Weight: 0.26 Kilograms
Material Type: Acrylic
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 1
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: S
Small is perfect for endlers and small guppy’s, if the divider is out it’s good for larger guppy’s too
Reviewed in the United States on April 27, 2026 by Alex
Size: S
Update: The nylon worked! I put a knee high type nylon around the box and that did keep the fry in and they cannot escape. It's a quick, easy, and inexpensive fix. Disappointed when we waited 2 days to put the fry inside and they still were too small and escaped. I tried about 3 or 4 times to place fry inside and they escaped 100% of the time. It was smaller than expected but that's okay I suppose for my use. The suction cups work very well. Unfortunately the slits are a little too big apparently. I did read from another review to try pantyhose so I will try that tomorrow. I currently have a small Tupperware container inside the hatchery until I figure something out since the suction cups work very well. I'm glad I saw that suggestion and will try to put the hatchery inside pantyhose to see if that will stop them from escaping while still allowing water through.
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Reviewed in the United States on October 13, 2020 by 07734
Size: M
I have safe little fry and more to come!!! I really like that it has suction cups, and is very sturdy on the glass. It arrived in good condition and just in time for my platy to give birth, though it wasn't originally the plan. I had originally put the platie in ther just to give her fin's some time to heal from another fish nipping at her, but the day after I put her in there, she gave birth. I bought the medium breeder box for my 40 gallon tank and it does well for two small fish. Today, I just bought the large, because I have more then one pregnant fish and it was very successful. I've never had a breader box before, it's awesome to see little fry safe and sound, from all the big bad baddies in my tank. My only complaint is that I wish the lid sat better/more securely on the box. Also, I heard a turkey baster is a good way to clean the box of poop and uneaten food. Mines in the mail 😁...it's all very exciting...though I do think my tank is about to be over run with platies☺️
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Reviewed in the United States on September 12, 2019 by Amazon Customer
Size: S
This is a fine fish hatchery. I will be using this for a small platy. I purchased the small. Size is perfect for female while giving birth. The size is big enough for the baby fry to live in for the first week or 2. Suction is strong. Does not tip over. The small comes with a bottom tray with slits for babies to fall into. There is also a divider that can be used to separate 2 fish. The sides and lid have slots for water flow. The only fault I noticed is the top. It easily comes off and I don’t think it will stay on if submerged in water.
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Reviewed in the United States on October 17, 2023 by kristen m.
Size: L
This is a fairly decent product. My only issue is that the wholes are too big for my danio eggs/embryos meaning they can easily escape into the main tank quickly drawing more attention to the box and ultimately becoming prey. Once I saw the fish swarming around the box and saw one escape all I could find to quickly resolve the issue was wrapping a clear plastic shower cap around the sides and bottom. It helped but now I have a few tiny fry stuck between the cap and the box :-( Honestly, with the large, I wouldn’t even put a few day old black mollies in there. The box is great for isolation of bigger (youth/adult size fish such as mollies, guppies, etc) though!! Just be careful if you choose to actually use it as a “breeder” box. At one point, I even had black mollies eating the contents of the box through the holes on the side :-(
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Reviewed in the United States on April 29, 2025 by Butterflies 10
Size: L
These are perfect for isolating a pregnant fish or a babies that you don’t want to get eaten also good for isolating an aggressive fish. Allows existing water tank flow through you don’t have to worry about a rotation, etc. are very strong and keep it against them the glass.
Reviewed in the United States on February 26, 2026 by Stunt guy
Size: L
The media could not be loaded. Although I don't prefer to cage a fish, so far, this hatchery seems a working solution to housing a betta and a gourami in the same tank. My half-moon betta was added months after the tank was setup. The betta didn't bother the sterbai corycats, neon tetras, or the siamese algae eater at all. But anytime it saw the little honey gourami, the betta would set it's sight and chase the gourami around the tank. I could almost hear the music from Jaws playing in the background! The hatchery comes with dividers, but to maximize the space available for the betta to swim in, I leave the dividers out. I like that the hatchery is a decent size and that using the suction cups is optional. The design of the hatchery allows it to float and in my tank, it stays in one place without the use of the suction cups. The betta seems comfortable. The honey gourami is happy. I give this hatchery two thumbs up. All is well.
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Reviewed in the United States on September 22, 2021 by Libra Sun-Libra Moon
Size: S
I ordered the small but was not expecting it to be super small. It will fit in the palm of your hand. Even thought it was really small I still used it and thought it could work. But once I put the fry in the tiny box there were holes around the bottom and the fry just swam right out. The holes are way to large even the eggs fall through the holes. The lid that goes on the top does not fit snugly if you put it even with the water line. The lid will float up and off allowing larger fish inside and the fry outside. The suction cups hold pretty good, and stays stuck on the side of the tank. If you lift the tiny box out of the water make sure there are no fish inside because all of the water drains out the bottom holes so you have to keep the little box submerged somewhat in order to keep water inside. Even though I measured the size small was super small. I must have measured wrong. It would be fine for small fish like neons or small fish like that. I have zebra fish (danios) the box was actually to small for them to turn around in. The first photo is full view of my 20 gal tank with the little box in the middle at the top. The other photo is zoomed in. Not happy with the little box at all. Its cheaper to just keep it. My first order never came and I had to get a refund and reorder. The package did arrive undamaged and item had no cracks.
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Reviewed in the United States on September 15, 2019 by Patricia