i found several chiller i have in mind. but not sure which to get. need some opinion from nano reefers. JBJ 1/20 chiller, pacific coast CL85, and coolworks iceprobe. I am very curious in how the iceprobe work and if it really makes a different in a 20 gallon. which of three is the best? The pacific coast is a heat and cool system. and it is cheaper than the JBJ. but jbj seem to have a better name.....and iceprobe...............iono if i can trust it.