We guarantee against DOA (Dead On Arrival). IF you see corals that are damaged, and/or losing tissue upon arrival, please take pictures in the bags and send an email immediately to email@example.com. You are eligible for store credit/or refund (minus shipping), if your coral is damaged or DOA. To be eligible for a credit, you must send pictures within 2 hours from when UPS or Fed Ex dropped off the package. Weather delays, acts of god, or UPS/Fed Ex delays are not covered. We will work with you if this rare unfortunate event happens.