Quote Originally Posted by Reef Swimmer View Post
Think ill do a 3in bed I want to have a mandarin at some point as well as a watchman and pistol combo.
None of those need a 3" sand bed. I've had two different pistol/watchmen pair, a scooter blenny and a mandarin. But hey, if you want more problems and need to learn the hard way, so be it! In all seriousness, you might be alright with 3" but that sounds like just enough to cause problems and not enough for a DSB. Maybe someone with DSB experience can chime in.