I am new to the world of keeping Octos and Cephs. I have just purchased the basic equipment I believe I will need, and in the month or so before my tank comes in I am doing a lot of reserach to properly set up the environment. I have read the equipment FAQ, and I want to list out the equipment that I have purchased, and I would like anyone out there to chime in, on what I am missing. Also, I am wondering if my tank and setup will be large enough to keep a O.Vulgaris, or whether I should stay with a Bimac? I have a 110 Gal. tank Multiple CPR Bak Pak 2s Magnum Filter (s) R/O Unit I plan on starting with R/O water, live sand and rock for three months. Should I get a chiller if I get a bimac or a vulgaris? What else am I missing? Thank you in advance for any responses.