tommorow i am purchasing my Biocube. now, this is my list: Day 1: Biocube (of course) argonite live sand r/o water ammonia, Nitrate, Nitrite, Copper test kits Hydrometer Thermometer bucket siphon Day 2: Live Rock Eventually: Sea Urchin, Octopus Mercatoris one question though, what PH do you need for an octopus? and do i need anything else? (do not say Protein Skimmer.) i'm hoping Nancy can help me on this one!