Hey everyone. Well, I'm getting my 110 gallon . I'm going to use river rocks for the substrate. I've used the rocks before with no problems. For the new rank I triple washed the rocks in small portion. I started to fill the tank with water and the new water was brown with sand and mud. Siphoned the water out and filled again. Still murky bet better. My question is should I turn on my filters to clean the water, wait until the water clears up more and then turn on the filters. I have 2 new Marineland 400 and they come with 2 carbon containers and 2 floss filter containers. What is the best solution. Thanks in advance, Ed.