[Reefmaster]

hey guys. the first thought i have is how well the glass, especially bigger tanks, will do with the differential expansion/contraction associated with heating or cooling with this sort of system. i wonder if 1. how efficient it would be, 2. if you could crack the glass with it.

as for controllers, i have been searching for people who know lots about data aquasition systems using a pc and interface. they are available out of the states, but very pricey. i read about a guy who wrote the code and used a 486 for the controller through rs232. i've looked at x10 but it seems a bit clunky to me. i'm more interested in rj45 through plc to completely automate the system, everything down to the r.o. coming on to fill the mixing bin, solenoids for dumping waste water and then pumping fresh mixed water into the system. that on top of lights, pumps, temp control including shutting off lamps in overheat, turning on fans, chiller, etc. anyone with this sort of idea in mind as well would kick ass. otherwise i'll keep up the search. shane