Welcome to Week 27 of 52 Weeks of Reefing! This week we are exploring how we can use algae to our advantage in the reef tank to help combat nitrates and phosphates...with refugiums! Refugiums are essentially a location in your tank (usually the sump) that allows you to provide a safe haven more micro fauna, as well as grow beneficial macro algae like chaetomorpha or caulerpa. There are a fair share of different types of refugiums out there today, with an equal amount of opinions on how to run them. The traditional refugiums with algae and/or live rock rubble are the most popular and effective in my experience, and some of the easiest to install and maintain. An older technology that is starting to gain more ground again is the algae turf scrubber. This is essentially a very efficient refugium; algae is grown between two light sources on a medium with water flowing past it and then periodically harvested. There are also a few more creative and unique options out there like cryptic refugiums. They offer a few unique benefits. A cryptic refugium is essentially a chamber that doesn't receive light, and allows for intense growth of sponges which filter the water. Do you have a favorite refugium method you prefer to run on your reef? Let us know in the comments area down below! *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.