Give Your Fish a Safe Space to Grow
Couldn't load pickup availability
A simple, clear, and cozy home for fry and small fish.
This transparent Fish Breeder Box makes breeding and raising tiny fish easy and calm. It keeps fry protected, lets water flow gently through the mesh walls, and gives you a clear view so you can keep an eye on everyone. It’s a friendly little helper for any home aquarium.
Keep your young fish safe without stressing the rest of your tank.
✔ Helps protect fry from bigger tank mates
✔ Perfect for breeding, isolating, or acclimating fish
✔ Clear design for easy viewing
✔ Easy to mount with strong suction cups
Rinse gently before use. Mount the breeder box with the suction cups on a clean aquarium wall. Check mesh openings regularly to keep water flowing smoothly.
We are proud to offer duty-free, reliable, tracked shipping— delivered to your door in over 200 countries worldwide!
Below you can check our average shipping times:
Domestic USA Shipping: 2-9 business days
US & Canada: 7-18 days
Europe: 7-18 days
Europe Plus*: 8-30 days
Australia, New Zealand: 7-18 days
Hong Kong, Singapore: 7-18 days
Rest of the world: 8-30 days
*does not include processing times up to 2 business days or longer in peak periods
Primarily we ship out from fulfillment centers in the United States, Eastern Asia and Western Europe. If the item you've purchased is out of inventory in your nearest location, we'll send it directly from our production lines at the same delivery times as stated in our shipping section.
Will this breeder box fit in my home aquarium?
It fits most standard aquariums and mounts with suction cups for quick placement.
Gives fry a protected place to grow without interference from larger fish.
The mesh walls keep newborns and small fish safe from curious tank mates.
The clear design makes it simple to check on your fry anytime.
Helps new fish adjust to the tank’s water without feeling overwhelmed.
Strong suction cups let you place the box exactly where you want it.
Designed for safety, visibility, and easy everyday use.
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Basic fish isolation | ||
| Fine mesh for full water flow | ||
| Strong suction-cup mounting | ||
| Clear visibility for monitoring | ||
| Safe space for fry | ||
| Sturdy PP frame | ||
| Works for acclimation | ||
| Easy daily care | ||
| Fits most home aquariums | ||
| Gentle for small fish |
Just press the suction cups against a clean aquarium wall and make sure it sits level.
Yes, the mesh helps keep small shrimp safe in busy tanks.
No, the fine mesh walls let water move freely through the box.
It can temporarily separate aggressive fish to help calm the tank.
Yes, it’s made from aquarium-friendly PP plastic.
The suction cups hold firmly when attached to a clean, smooth surface.
A gentle rinse with aquarium-safe water is usually enough.
Light debris may settle, but a quick rinse keeps it clear.
Yes, it’s lightweight and easy to place in different aquariums.
