Tips for keeping a DSB

[Aflac]

Hey guys,

I'm leaning towards doing a DSB because I really like the look of the sand in a reef tank. I've read the million threads out there between DSB and BB tanks and it seems to be a toss up.

It'll be a 40g with roughly 20g sump.

I'm just curious if those out there that have been successful can chime in with some tips and hints to make a DSB last.

Thanks in advance,