what substrate

[niskyvaulter]

i finally decided to get some substrate for my 55. i dont want sand for the sake of filtration, just aesthetics, so im goig with 1.5 inches at most. what kind of substrate would be best at this depth. please specify grain size too. also, its an sps tank so its got pretty high flow.

 

[michaeltx]

sugar sized sand is the best IMO to use. are you doing a remote DSB or sump with the tank SPS need pristine water and the DSB helps in this.
Mike

 

[niskyvaulter]

i have a sump/refugium with a dsb.

 

[michaeltx]

cool I always liked useing a remote DSB so that if something was to go wrong I could isolate the main tank.
Mike

 

[aztec reef]

sugar sized or oolite....are ideal for SSB's.