Acclimating new corals properly is essential to reduce stress and ensure a smooth transition into your reef tank. This step-by-step guide covers everything from temperature matching and light adjustment to proper dipping techniques and placement strategies. Protect your investment and promote healthy coral adaptation with proven acclimation methods for both beginners and experienced reef keepers.
Corals are living animals that are highly sensitive to:
Temperature changes
Salinity and pH shifts
Lighting intensity
Flow patterns
Bacterial composition
Proper acclimation reduces shock, minimizes tissue loss, and ensures better polyp extension and color retention.
tem | Purpose |
|---|---|
Acclimation container | Holds coral during transition |
Airline tubing or drip acclimation kit | Allows slow water mixing |
Thermometer | Verifies temperature match |
Light dimmer or acclimation mode | Prevents photo shock |
Gloves and eye protection | For safety and coral handling |
Coral dip (e.g. ReVive, CoralRX) | Removes pests and bacteria |
Dim or turn off the lights 30 minutes before adding new coral. This reduces stress and photo shock.
Float the sealed coral bag or container in the sump or display tank for 15–20 minutes.
Ensure coral temperature matches tank water before opening.
Place coral and original water into a clean container.
Using airline tubing, start a siphon drip from your tank to the acclimation container.
Adjust to 2–4 drips per second.
Drip acclimate for 30–60 minutes until volume doubles.
Examine coral for pests, egg sacs, bite marks, algae, or damaged tissue.
Gently remove debris or unwanted hitchhikers with tweezers.
Prepare coral dip per product instructions (ReVive, CoralRX, Bayer).
Dip for 5–15 minutes, gently agitating the water with a turkey baster.
Rinse coral in clean tank water before final placement.
Start corals in a low-light, moderate-flow area to recover.
After 3–7 days of adjustment, move to their permanent zone (refer to Coral Placement Guide).
SPS and light-sensitive corals may require longer acclimation to intense light.
Method | Application |
|---|---|
Acclimation Mode | If using AI, Ecotech, or Kessil lighting systems |
Eggcrate Rack | Gradually move coral upward toward final position |
Neutral density screen | Physically reduce PAR for temporary period |
Reduced photoperiod | Shorten daily lighting schedule for first 3–5 days |
Mistake | Consequence |
|---|---|
Skipping temperature match | Thermal shock, tissue loss |
Adding store water to tank | Pathogen introduction |
No dip before placement | Risk of pest infestation |
Immediate full lighting | Bleaching or polyp retraction |
No observation post-placement | Missed tissue loss or pest emergence |
Float bag for 15–20 minutes
Drip acclimate for 30–60 minutes
Visual inspection
Coral dip and rinse
Low-light placement
Monitor for first 7 days
Coral acclimation is one of the most overlooked—but most important—steps in reef keeping. Taking just 30–60 minutes to properly introduce your corals sets them up for long-term health, color, and growth.
At Dream World Corals, we pre-condition our frags for stability—but proper acclimation on your end completes the equation for success.
Discover Dream World Corals' exclusive, ethically sourced WYSIWYG corals, delivered safely with our 72-hour live arrival guarantee.
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Dream World Corals is a trusted online coral retailer specializing in hand-selected, ethically grown WYSIWYG corals. With an unwavering commitment to reef health, we provide hobbyists of all levels with premium corals backed by expert care, safe shipping, and our industry-leading 72-hour live arrival guarantee. Our mission is simple: help your reef thrive.
