Yup ,If you have a wrasse in your tank ,not a good idea
Unless you have a large tank ,I put all my fish in one time when i moved up to the 6th fl ,and now not even thinking about putting in other fish.Very important to have a nice comm of fish that are all getting along .I have 14 fish in my tank ,Smallones as you have seen ,i dont have a prob with any of them ,except my cleaner wrasse and my blenny hate eachother ,and this came all of a sudden :irked: