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To the random YouTuber that turned me on to this gadget, me and my back owe you a thousand thanks!!!! Amazon

Hey everyone! I am looking to add a wrasse or two into my tank. It is a mixed reef tank (softies, LPS and SPS) with a sand bottom, 110 gallon display 150 gallon total, screen lid cover 1/8" net. I have only a yellow watchman and a diamond watchman goby in there currently. I will be adding a...