I am setting up my first SW tank with a 29 Biocube. I plan to use chamber 2 as a refugium right from the start, with a couple pounds of cured live rock, chaeto, external lighting, and the mod to open the partition between chamber 1 and 2 to increase flow. I plan to use an 80-20 mix of cured to uncured live rock for a total of 20-25lbs, with 20lbs of live sand in the main tank. The other mods I will use are a heater in chamber 1, and a Koraila Nano powerhead in the main tank. Should I just use the die off from the live rock to begin the cycle, or should I still add an ammonia source...raw shrimp, pure ammonia, etc.? If I should add ammonia, to what ppm concentration should I shoot for? Does my plan sound good? Thanks for your help...I'm excited to finally move into SW!!!:headbang2: