Sometimes there just is no substitute for Mother Nature. You could make an argument that this is one of those times. While the use of algae scrubbers as a form of filtration certainly is not a new concept in the hobby, it remains a very effective and easy approach to reducing nitrates and phosphates from your marine aquarium. I thought I would share my approach to building and using an algae scrubber and what I have learned about some algae scrubber basics