I have a pair of Lumen Max 2 pendants that will be used for my 150g 48"Lx24"Wx30"H. They have an approx reflector dimension of 11.5x11.5. The Lumen Bright 3's are 19"x19". Will the LM 2's get the job done or will the Lumen Bright 3's do it better? I will be using Radiums and only want to use T-5's for Dawn/Dusk. The tank will be, for the most part, a softy tank. Speaking of the Radiums, with a 30" depth will 250w bulbs be good enough or would 400's be better? I will have about a 4" sand bed to support a carpet nem.