OK, I just finished building the Micro 128 in my backyard in Kahului.  It has a 32 ft trough and a 300 gallon Rubbermaid tub.  About 1250 gallons of tap water was put in, and the MD2 has been turned on to cycle the water.  At this time, I have 1 AP300 air pump with 2 air stones in the fish tank (eventually will have 2), and 2 AP300's driving 4 air stones in the trough (every 8 feet).  It took 3 d…