Aquatic Breeding Cone
The Aquatic Breeding Cone from Cobalt International is designed for discus, clownfish, and other substrate-spawning fish species.
Constructed from natural stoneware, this cone offers durability and stability in aquarium environments.
Perfectly sized to fit the needs of breeding fish, it provides a secure and safe space for spawning.
Easy to handle and install, making it ideal for hobbyists of all experience levels.
Free from chemical leaching and resistant to breakdown over time, ensuring long-term reliability.
Manufactured in the USA.
| Feature | Detail |
|---|---|
| Material | Natural stoneware |
| Use Case | Discus, clownfish, substrate spawners |
| Origin | USA |
| Stability | Non-leaching, non-degrading |
| Handling | Easy to install and manage |
FAQ
Is the breeding cone safe for fish eggs and fry?
Yes, the cone is made from natural stoneware and does not leach chemicals, making it safe for fish eggs and fry.
Can this cone be used with other types of fish?
It is specifically designed for substrate-spawning fish such as discus and clownfish. Use with caution for non-spawning species.
Does the cone require special maintenance?
No special maintenance is required. It is durable and resistant to breakdown or chemical leaching.

Max Kelly –
The breeding cone worked perfectly for my clownfish spawning. It’s sturdy, doesn’t break, and the fish used it naturally. Easy to set up and clean.
Christopher Davidson –
I’ve used this cone for discus breeding and it held the eggs safely. The stoneware material is solid and doesn’t absorb water or leach anything.
Lisa Jones –
Good quality and fits well in my tank. The size is just right for the fish. A reliable tool for breeding setups.
Alan Sharp –
No issues after several months of use. It’s stable, non-reactive, and the design supports natural spawning behavior.