In this video, Remy talks about the missing pieces to his reefing puzzle. Stability and proper flow lead to thriving and healthy environments for fish and coral. You will want to keep the parameters as stable as possible for an aquarium, and an ATO will help maintain the stability, especially for smaller tanks, as it leads to fewer fluctuations. Flow is vital for air exchange, water turnover, and it keeps food and detritus suspended from the water column. Check out the video to see what awesome two products he will include for his Macro Algae build.