Make a Spawning Mop for Breeding guide

The DIY Spawning Mop is a cost-effective, easy-to-make aquarium breeding tool that helps hobbyists safely collect and hatch fish eggs. Perfect for killifish, rainbowfish, and egg-scattering species, this homemade breeding accessory provides a safe spawning surface and makes egg collection easy.

🛠️ Quick Steps

Wrap acrylic yarn around cardboard 40–60 times.

Tie the yarn bundle at one end, remove from cardboard.

Cut the opposite loops to form long strands.

Attach a cork for a floating mop or add a weight for a sinking mop.

Rinse in aquarium water and place in the tank.

❓ FAQ

Q: Why use a spawning mop?
A: It mimics plants, providing fish a safe place to lay eggs and makes egg collection easier.

Q: Can I use any yarn?
A: Use acrylic yarn only, as cotton will break down in water.

Q: What fish benefit from spawning mops?
A: Egg-scattering fish like killifish, rainbowfish, danios, and tetras.

Q: How often should I check for eggs?
A: Daily checks help you safely remove and hatch eggs in a separate tank.