Aprender
Find trusted knowledge on anything in your reef.
- Care guides & how-tos
- Species & coral information
- Equipment & setup advice
- From beginner to advanced
The community-built knowledge platform for reef keepers of all levels.
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Find trusted knowledge on anything in your reef.
Solve problems and build confidence in your reef.
Your knowledge helps the entire reefing community.
Built by thousands of reef keepers around the world.
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Problem
Waminoa are small flatworms that sit on coral tissue and can cause chronic irritation and shading, especially...
Species
Rust-Brown Flatworms / Red Planaria are common nuisance flatworms that multiply fast in low-flow areas and...
Coral
Spionid worms can live in coral skeleton and irritate tissue with paired feeding filaments, sometimes causing...
Vermetid Snails
Vermetid snails are tube-dwelling pests that spread on rock and frag plugs and irritate corals with sticky...
Pests
Hydroids are stinging colonial polyps that hitchhike into reef tanks and can spread across plugs, racks, and...