Opinions on mini Brittlestars

[Nano]

Recently acquired about 6 the size of a quarter hiding in a frag I purchased I noticed when I dumped them in to my acclimating tup, the reason I am posting is cause I see mixed feelings/opinions on these guys, and currently have them "Sumped".

I personally would like to toss 2-3 in the DT for detritus duty, and leave the others in the sump for the same purpose. I have read they are great detritus eaters, and also help aerate the sand bed in a more naturally delicate fashion. I have never noticed brittlestars in any one my tanks, but figured I would risk them in the sump for now until I find out more on them.

Any knowledge/opinions (good or bad) swing them my way please

Thanks all