the 2 HQI lights each has there own external ballast while one gets really hot the other is not as hot.
the acintics have a internal ballest built into the canapy
i heard of placing them on a brick as that is a great insulater against heat as well as providing air flow under the ballast _________ 
75 Gallon Rectangle
40 Gallon Sump/Fuge, 2x150W HQI MH
2x96W True Actinic 03 Blue, 4 Blue Moon-Glow LED
Coralife Skimmer, 950 Mag drive Return
4 Maxi-Jet 600's, 100 lb. L/R |