what i did was put fine sand on top of the crushed corals.... it was to much wrk for me to remove ... and it works good :D ... got a fine bed of sand on top of the crushed corals... and looks pretty good with some chunks of crushed corals mixed in :D

Ya that's what I am trying to get away from. My substrate right now is crushed coral and fine sand mixed, but no matter what the big chunks always end up on top of the sand and it looks like crap in my opinion.

need lots of sand... i went crushed onthe bottom .. then med aragonite... then fine on top so i got about 3 layers

Ahh, well that would make more sense. Not really what I am looking for though. Anyone know where I can get a large bendable tube to use as a siphon for this thick crushed coral?

might be hard that stuff doesnt siphon too well

i just did a sand replacement had to remove some black sand i thought was so awesome looking, then decided on white.
i moved all my sand to my sump and replaced the main tanks sand.
I wont recommend this as im no expert but it did work for me.