bed question

[mike90]

Hi All,
I'm going to be moving my tank again soon which is an opportunity to possibly change out my sand with something different after I get all of your opinions. I usually always have to sift the sand around to get the brown spots off of the top of it. My question is, will switching to a different bed, like crushed shell or coral allow me to avoid the brown spots on the bottom? Or does it happen with all beds? Thanks.

 

[reefman5511]

Stick with the sand. You definitely don't want crushed shell or coral due to its' largeer particle size. Dirt will get in it like no tomorrow. Also sand is a better substrate for most bottom dwellers.

 

[Anonymous]

I have had the brown spots of algae on even bare bottom glass!