Substrate? What is everyone doing now

BB, not by choice. The flow blows around fist sized rocks. I wish I could have CC, or rubble bottom.
 
I use crushed coral. I tried the sand thing did'nt like as much.Though my lawnmower blenny liked to throw it all over the place.
 
I have larger chunks (1-1.5 cm) of cc and shell mix 1" thick.

Pros: great for pods to hide in; easy to vacuum; has been easier to care for than 1" sand; does not blow around much in current.

Cons: traps debris so you have to vacuum; eventually gets covered in coralline algae, which while in some circumstances desirable not as pleasing to my eye as crisp, white sand.
 

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