I am going to try something new... Well, a few ideas I am going to try. Mainly, I am hoping to create a 2.5G Black and white tank later this week. I hope to eliminate all of the "traditional" reef colors, and go with Black Sand and White Xenia. For a cleanup crew... dwarf zebra hermits and black snails. I hope that the Xenia will cover most of the rockwork in no-time. I had heard that xenia is able to clean nutrients out of the water. Besides the Live Rock, and non-live black sand that should get seeded by the rock, I was wondering how effective the Xenia would be at removing nutrients.