wow...fish stuff from the wife? Lucky dude!
You want a neptune systems aquacontroller junior (acjr), be sure to get one with the serial port if he wants to hook it up to a computer
You will need to get a package deal with an acjr controller (with serial port!), dc8 (controlled power outlet; acjr is useless without it!) and a lab grade ph probe
Talk to Tom at socaltropicalfish.com for the lowest price in socal!
Link:
http://www.socaltropicalfish.com/NeptuneAquaControllerPackage.html
This is the one:
-AquaController Jr Combination Pack (Blue Backlit, Base Unit includes
temperature probe)
-Serial Port/Interface ( cable not included )
-Lab Ph Probe
-DC8
He will also need two cables to connect it to the computer:
Aquacontroller cable to serial (from socaltropical):
PC9 / PC Serial Cable -$16.95
Serial to usb:
http://sewelldirect.com/usbtoserial.asp
If you need any help let us know =)