i just pick up some fine river sand for my tank from a nearby river. it resembles beach sand but much browner. here are my questions, do i have to boil it to kill all the bacteria? or can i just clean it until the dirt is remove and just settle it into my tank? which is better? sand or gravel? im afraid tht the sand will get suck into the filter. some advice from the pro's will be surely helpful.
thanks.