Zero
as of now im BB and really lovin not having to deal with sandstorms.
though i love the look of sand, with the trade off, i rather no have to deal with the sand mess. everything just looks reall super clear also. maybe its just me (;
I'm BB and also liking it alot. I don't think that I would set up another sand bed/SPS system ever again. As for softies only tanks, I think that a DSB works well.
no more DSB for me... BB all the way and loving it. able to have so much more flow from mrs. tunza... lolz.. everything is doing very well and looking really good..