zoas and mushrooms are fairly easy and should do fine with your lights. Also different leather corals should be fine. Green Star Polps look nice swaying in the currents, but they grow fast. Also different Zenia are pretty but also can grow like weeds. I would say to not get any light loving animals like SPS, Clams, Anemonies, because I dont think you really dont have enough light. I am guessing that LPS should do ok if kept towards the middle or top, as I kept some under that amount of light for a good while. LPS are nice in that they can have nice colors, and some show different textures and movement within the tank. I also say get a couple powerheads to help with flow, as corals will do better with more flow than a HOB filter usully provides. I also advise some type of A&B additive to help.