Here are som pics of the sytem I coppied off RC51 for my 3/4 acre pond. I used Eco 7 Air Pump, three 9 inch diffuser from diffuser express, 50' of bottom line hose, 15 feet of auto zone heater hose, a few bread racks from a buddy, some stainless cabel, a 2 duck decoys, and moddified contico locking out door tool box. The tool box is also going to be storage dock box for the radio and life jackets, things like that.
Pump=115$
diffusers=62$
bottom line=80$
heater hose=10$
contico box=64$
box vents=11$
PVC fittings=10$
hose clamps=4$
stainless wire=15$
Total=356$
diffusers
http://www.diffuserexpress.com/fine_bubble_disc.htmpump
http://www.aquariumspecialty.com/catalog...ac6a4ac1fada291bottom line hose
http://www.cleanponds.com