Wow....nice pickup Michelle, i don't know how i missed that. I wouldn't use shrimp. Even though they are prolific breeders, they wouldn't have a prayer against voracious hunters like fbt's. Even with a planted area to hide in. Plants would definitely add some bio filtration. You could maybe use a pair of the smaller guppies, like endler's live bearers. Otherwise, i would look at micro fish like mosquito fish or chili rasboras to keep the waste at a minimum.