What's the best way to rid a tank of it. I have it on my sand bed. I syphon out when I do water changes (once a week). Tank parameters are nitrate 5-10, nitrite and ammonia 0 phosphate .02 salinity 1.025. Haven't tested calcium alk or magnesium in a couple weeks. I'm pretty sure I need another mp10 to up my flow just have to wait a couple more weeks to purchase it.