Not sure of nova extreme, but Coralife lights are pretty noisy.putting together a 55g tank was wondering about lighting for low/med tech tank. which would be better, nova extreme with 104 watts or coralite power comp with 50/50 bulbs with 130 watts? the price is about the same. Gerry
I thought all 50/50 bulbs were 1/2 10000k and 1/2 Actinic?I have the 130 PC 50/50 for my low/mid tech and like it. Although there is hear-say that the bulbs only put out 55watts instead of 65, giving you 110 instead of 130. Whether that's true or not, I've had good results. Just stay away from the 50/50 bulbs that have "Actinic" light. The actinic does not do ANY good for aquarium plants.