Brackish bottomfeeders?

[Seleya]

Well, the title asks it all. LOL *twirlysmi

I'm setting up a brackish tank. Currently just Mollies, but more to be added in the future. Some species are obviously sensitive to salt. Are there any options for bottomfeeders? Perhaps invertebrates? Some sort of shrimp? Does anyone have some experience with this? Help?!

 

[CAPSLOCK]

Most gobies are brakish, but I don't know how much they really clean or if you have to target feed them.