I have a tall 20 gallon tank with a Aquatic Life lighting system. I just replaces all the bulbs but my corals don't seem to thrive and the lights cause the tank temp to fluctuate. Would upgrading to a Nano LED lighting system make a material difference? Given they are almost $400 I wanted to check with you as I just replaced all my bulbs in the 1 year old Aquatic Life system. Thanks