Have a Radion xr30 that I'd like to use on the new tank but the problem is it will be insufficient coverage (tank is 36"L x 24"W). Ideally, 2 x xr15s would do the job, but I am trying to figure this out without having to sell the xr30 and buy 2 xr15s. I'm thinking T5 hybrid combo with the xr30s might do the trick. Would this work or would it still be insufficient? Also, do I need to go 36" T5 hybrid or can I get away with a 24"? (technically the tank's length is 35.5"). Open to other ideas. Thanks!