What would you like your mop to do? Start with your aquarium’s needs, then choose the floating option and color that fit your layout.
Find your fish
Explore egg collection and fry-cover ideas for your aquarium.
Killifish
For species that deposit eggs among fine plants, yarn strands offer an accessible spawning surface.
Japanese Ricefish (Medaka)
Female medaka carry a cluster of eggs briefly before attaching them to a suitable surface.
Rainbowfish
Fine yarn strands provide an alternative to fine-leaved spawning plants for suitable species.
Platies & Fry Cover
Add a patch of strands before fry arrive so small fish have somewhere to retreat.
Mollies & Their Fry
Mollies are livebearers. Their fry can use cover among the strands rather than an egg-laying site.
Collect fish eggs: rotate mops
For suitable egg layers, move the whole egg-bearing mop to a prepared hatching/fry tank away from adults, then place a spare mop with the breeders. Match placement and incubation care to your species. Experienced breeders may also pick individual adhesive eggs where appropriate.
Read the egg-collection guide →
Add grazing surfaces for shrimp
A conditioned mop offers many separate strands for biofilm to colonize. Arrange it where shrimp can reach the yarn and you can check for trapped debris.
See how biofilm and shrimp grazing work →
Help livebearer fry hide: group several mops
Guppies, endlers, platies and mollies give birth to live fry. Arrange multiple mops into dense cover and leave that shelter in the tank, with room for swimming and circulation. This supports colony setups where adults stay in the aquarium, although some fry may still be eaten. Mops also add shelter and structure outside breeding setups.
Choose floating or non-floating
Floating: suspend the strands from the surface. Non-floating: position the mop lower in the aquarium using the included suction cup. New yarn can take time to wet and settle. Leave room around the strands for circulation and keep them away from filter intakes.
Choose your color and mop type
Know what happens next
- Select a color, choose floating or non-floating, and add the quantity you need.
- Check out as a guest or use an optional account. Available express payment options appear at checkout.
- Rinse the mop before use and follow the cleaning guide for ongoing care.
See shipping, delivery estimates and returns before ordering. Need help choosing? Contact sales@spawnmops.com, or visit bulk orders for a larger project.