Will the Hydra 26 fit using the 16" end plates? I have the standard 18" end plates, but the fixture is over an 18" tank (standard 75g). It would be nice if I could pull the t5's in just a little bit... If I'm not mistaken the Hydra is right at 5 3/8". Not sure what the gap would be with the 16" end plates, and honestly I don't even know how they fit in the 18" as I still have them on my 40B.