I think the first thing to decide is - do you want a low nutrient water column or a high nutrient water column? Those growing SPS usually opt for the former and go BB with a super high flow rate and super clean water. Others, like myself, who have LPS/softies prefer the DSB or SSB. I've went from DSB, to BB, to SSB (3" fine SB). I am very pleased with my SSB! It is asthetically pleasing, has great NNR properties, and also gives my gobies something to terrorize
