here is the 3 fan assembly i bought. this little unit is amazing. at night my tank gets down to about 80 degrees give or take a little and during the day it was hitting 85.1 so i went and go one of these. i'm waiting to get the 'y' adapter to hook the controller to the profilux but for now i turn it on with the lighting. the tank temp now only hits about 83.8. i'm a little worried though because my photoperiod so far is only 7.5 hours and i'm hoping that when i increase it the temp will not as well. i cannot fit the large fan assembly in my sump area. if it does get worse i'll have to install something on the canopy
