We use USPS and UPS Overnight for coral delivery and we ship on Tuesday and Wednesday only after contacting you, which we will do via email with order and shipping specific information prior to shipment. Monday is the most likely day for delays, and Thursday delays result in Monday deliveries; therefore we ship on Tuesday and Wednesday. If you require a shipping day other than Tuesday or Wednesday, contact us with any questions or requests. Tracking information will be sent to the buyer as soon as the order has been shipped. We check the weather in our area, the weather in your area, and with shippers to do our best to avoid delays but will take care of you if they arrive DOA. We just ask that pictures are taken and sent to us within 1-2 days of arrival.