After sitting here for 5 minutes the only thing that comes to mind is that you are going to be tied to the manufacturer of the bacteria for replacement?? Is it a self sustaining colony? Will the regular process of the Nitrogen cycle be affected? Once the tank is well established can the addition of the bacteria stop?
The special carbon... Too many questions right now 
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. | 
