Hi Pete! I am an experienced Marine aquarist and I currently have two tanks up and running, one that is a reef tank with fish and then another that I have set up in preparation for my seahorses. My reef tank contains a variety of live rock, corals, fish, and invertebrates. The tank I have set up in preparation for my seahorses contains a mandarin goby, a yellow watchman goby, 3 baby pajama cardinals, some soft leather coral, blue leg reef hermits, an assortment of small snails, and branching tonga rock (put in dry so no unwanted pests!) I actually ordered my seahorses yesterday, nit gaving seen the forum here. I have placed a supply of Picene Energetics mysis shrimp in the freezer. I look forward to hearing from you.