So I've got a mccoskers flasher wrasse that killed my bicolor blenny and pics on my ocellaris clown. This kind of wrasse is supposed to be peaceful but mine isn't I guess. He wasn't always like this. And second thing I noticed a couple flatworms on my glass in the morning. I've had them about a week and finally found the ones I have on melevvs reef and according to him they are OK and best not to mess with. So I'm thinking a fish that will hopefully put my "peaceful community " fish in check but not kill him and maybe snack on a flatworm. I've heard news about damsels and dottybacks being semi aggressive and will eat flatworms. I know wrasses will too but I don't need another wrasse. My tank is 35 gallon. I wad thinking a bicolor dottyback. Any other suggestions???