Wanna make a good deep sand bed

[Don E]

Hello again-

This site kicks butt, by the way.

I'm setting up a 20G which will eventually be a no-fish nano. I am currently cycling about 25 lbs of very porous "lace rock" from big Al's- this is some kind of limestone. Once it cycles, I will add a little bit of cured live rock.

I have about 2-3" of Caribsea "seaflor grade" sand in there. Is that enough? Should I have gone with the finer "aragamax"? I still have time to add more sand if I need to.

Any and all advice welcome!

Don