Im using three G2 on a 86 gallon tank. I still dont have full spread over the entire tank. Im using the short rail kit but even the long rail kit is only 3 inchs longer. Im my opinion the 52 buy AI was an attempted by them to say hey look are lights have a lot of par because the vagas dident. You dont really need all that par. I would save up and get Ray to order you an ATI hybred you will be much further in the tech game that way. The radions and ai lights are both nice but they look like a toy compared to a t5 setup unless you build them into a canopy.
