does anyone out there have a tank with no sand/substrate in it at all? my 150 reef has a DSB with plinum (sp?). my husband has been talking about taking out all of the sand and the plinum and just covering the bottom of the tank with just the live rock. i've heard that over time DSB can build up a lot of toxins and eventually crash the system. so i'm tempted to just let my husband at it. but i wanted to check here to see what ya'll thought about a tank without sand/substrate.
thanks,
Mermaid
thanks,
Mermaid