Sorry to hijack the thread, but does anyone have a temperature controller for iceprobe they'd be interested in selling?
re cooling capacity:
CoolWorks IceProbe
Typical Cooling (in degrees Fahrenheit)
A single chiller will cool 10 gallons of water 6-8 degrees, 20 gallons of water 3-4 degrees, and 40 gallons of water 1-2 degrees.
Two chillers will cool 10 gallons of water 10-12 degrees, 20 gallons of water 6-8 degrees, and 40 gallons of water 3-4 degrees.
Multiple chillers are recommended when cooling an aquarium larger than 20 gallons.
courtesy DFS