I have a 12G JBJ retro tank with a 10 gallon sump. The sump is completely bare no live rock and no macro (can't do it b/c of open stand design). My question is I have a mess of detritus that I have to clean out every time I do a water change, is there anything I can do to reduce or further breakdown the detritus? Can I add some snails or other inverts to try to clean it up? Or do I have to break down and buy a sock? Any opinions or input would be apprecitated. Thanks.