Care
Feb 15, 2026
How Do I Dip Coral Before Adding It to My Reef Tank?
Quick Answer
Coral dipping involves placing new corals in a medicated saltwater solution for 5-15 minutes to remove pests like flatworms, nudibranchs, and hitchhiking crabs before adding them to your display tank.
Coral dipping is essential pest prevention. Before adding any new coral to your display tank, you should dip it in a coral-safe solution to eliminate common hitchhikers that could devastate your reef.
Why Dip Corals?
Even corals from reputable sellers can harbor invisible pests. Common threats include:
- Acropora-eating flatworms (AEFW) - Nearly invisible, can kill SPS overnight
- Montipora-eating nudibranchs - Feed on montipora tissue
- Red bugs - Infest acropora and drain coral energy
- Zoanthid-eating nudibranchs - Target zoa and paly colonies
- Hitchhiking crabs - Some species eat coral polyps
- Aiptasia - Pest anemones that spread rapidly
Step-by-Step Coral Dipping
- Prepare the dip solution: Mix your coral dip (Coral Rx, Bayer, Two Little Fishies Revive, or similar) with tank water according to package directions in a separate container.
- Match temperature: Ensure the dip solution is the same temperature as your tank water (around 78°F).
- Submerge the coral: Place the coral frag or colony into the solution.
- Agitate gently: Use a turkey baster or small powerhead to create flow and dislodge pests.
- Wait 5-15 minutes: Follow product instructions. Most dips recommend 5-10 minutes for LPS and soft corals, up to 15 minutes for SPS.
- Inspect for pests: Watch for flatworms, worms, or nudibranchs falling off. Use a flashlight to spot them.
- Rinse: Transfer the coral to a container of clean tank water and swirl gently to remove any remaining dip residue.
- Place in tank: Your coral is now ready for your display or quarantine tank.
Popular Coral Dip Products
- Coral Rx: Industry standard, effective against most pests
- Bayer Insecticide: Budget option, highly effective but requires careful dilution
- Two Little Fishies Revive: Gentle iodine-based dip
- Brightwell Koral MD: Strong option for stubborn pests
Tips for Success
- Always dip new corals - no exceptions
- Consider multiple dips 24-48 hours apart for high-risk pieces
- Keep the coral frag plug; inspect underneath carefully
- Never reuse dip solution - make fresh batches each time
- Don't pour the used dip solution down the drain where it could reach waterways
Browse corals on ReefBay from trusted sellers, and always dip before adding them to your tank. Track your coral additions with the ReefBay app to monitor health over time.
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