I should be recieving my mantis tommorow, the lfs ordered me one, hopefully a g. smitti or a n. wennerae. I have a 20 long with a Teatratec PF 150 filter and heater combo and a 24" coralife 2 * 65 light with 10,000k and an actinic. I have about 2" of sand with 1 large rock and some smaller ones scattered about. I started the tank 2 days ago. The rock has been in 55 reef for awhile so its already cycled. Can anyone think of anything else I should add? I cant wait to get him, but want to make sure that the tank is ready to rock for him when he/she gets here. Thanks for all the help!!!!