Sand or no sand in refugium

I am trying to decide if I am going to place sand in my refugium. What are the pros and cons of sand or bare bottom? I plan on only having cheato at first and see if that handles the load. I will then re-evaluate the water and go from there.

 

sand might be a place for scavengers to live and eat detritus that gets sent i there. but a couple snails would be just as happy in a bare bottom tank.

sand is probably necessary for alot of macros, but you only want chaeto so skip that point.:

you can have a dsb that will absorb nitrates, but so will chaeto so skip that ::

unless i forgot something, id say it doesnt matter unless you have rooting macros;D

 

Ok I will try the bare bottom and see how it goes. Thanks for the reply.

 

I'd do a 3-4" sand bed.
Here's mine: