Guys I am in the process of cooking my rock. I initially wanted to go bare bottom but I want to add sand just for aesthetics. I am thinking about purchasing a wave maker to go with my Tunze. I have also purchased a sulfur denitrator. What I want to know is what sand can I go with that won't be too large to become a detritus magnet and not too small to blow around. Not looking for the sand bed to become anerobic. Please advise. Thanks