as for shrimp, it depends. i have co2 and am dosing so probably not likely. for now i really want to get good at maintaining a planted tank well first. i want my lush tank!
i hear you there. my tank crashed last night and i re-homed my fauna to my larger tank, now i am considering just leaving that tank planted and dosing it heavy with no fauna to get it lush, then back off on that once i am happy with where it is an add shrimp or whatever.