View Full Version : coarse marine substrate? has silica in it/safe?

08/02/2010, 02:06 PM
warning on the back says can damage lungs if breathed in.. only asking cause my lungs are sensitive, but if the stuff gets rinsed b4 setting up the tank, it should all be okay once under water or can this evaporate back in the air?

thanx guys, i know sounds crazy, but ive seen really crazy stuff in this hobby along w u guys!

08/02/2010, 02:16 PM
once wet its fine, you never want fine dry particles entering your lungs

probably no silicates anyway which are worse then argonite sand for lungs, theuy put the warning label just to cover there hiney