Had a six line wrasse, was a great fish for eating pods, also ate bristleworms, turbo snails, coral banded shrimp, royal gramma, feather duster colony , tin cans , and who knows what else.
It is a great looking fish with plenty of personality, didn't want to get rid of it, but could not add anything new to the tank. Not trying to steer you away from a six-line, some poeple have success with them, just a heads up that it may become aggressive, ours was behaved in a 36 gallon, when switched to the 90 gallon, it copped an attitude.
We just got a neon dottyback, this week, another potentionally aggessive fish, this one so far is well behaved and searches the LR looking for pods.
good luck