You won't regret itI'm planning to start using RM method as soon as I get my ATI results back. Just sent them this week so it will be a couple more I'm sure. Have a friend that is using the method and getting really good results. I figured I'd give it a try since I don't do many water changes anyway. This is probably the reason I've had some issues with a few large colonies over the past 6 months. Excited to see what happens.