It's Week 4 of 52 Weeks of Reefing, and this week we are sharing a few tips on the single most important topic related to maintaining a reef aquarium long-term; redundancy. We are going to cover the top ten major systems your reef ecosystem relies on in order of the most common equipment failures and most likely to cause catastrophic consequences. We will go over why they are issues as well as present some solutions. For our purposes redundancy means both back up systems and equipment but also safety fail-safes such as shut off’s, alarms, and notifications. Most of us tend to live in a world where we just expect things to work and often have a misguided impression that it will work indefinitely or when it fails there will be limited impact that we can deal with when it does fail. This episode is really about brainstorming all the things we need to consider and looking at the options for planning a tank like this. We will show the actual installation of our redundancy solutions when we install the equipment in future weeks. *Legal Stuff* The purpose and content of this video is to provide general information regarding the products and their applications as presented in the video. Aquatic sales solutions, inc. And its officers, directors, employees and agents disclaim all express or implied warranties, in any way, related to the products and their application as presented in this video, make no representation or warranty regarding the products and the application as presented in this video and shall not be liable for any direct or indirect losses or damages of any type, including but not limited to punitive damages, or from personal injury or death resulting from or in any manner related to the video, and the products in and contents of the video. The viewer expressly agrees that aquatic sales solutions, inc. And its officers, directors, employees and agents shall not be liable for any damages or losses related to the products in and content of the video and hereby agrees to hold the foregoing harmless from any such losses or damages.