I have an order comming in today for 4 corals and i really need help on where i should place them in my tank. The 2 zoas or palys will go by my other ones but the acan and mushroom i dont know where to put. Im getting nervous only because i have a decent amount of corals now and i dont want any of them stinging eachother. I took pics of my tank its a 20 long. Also pic of my order. Thanks for your help!