ah yes! And yah I don't use the white lights on my Evo tank i find that algae grows super fast if they are on. I just leave the blue lights on and one day ill hopefully buy one of those custom lids for the tank and buy new lighting but I don't wanna start experimenting until I have the basics of coral care down...Just gluing the frags to the rocks was extremely hard for me XDGet a sand-sifting conch. It'll take care of your sand bed for you.
Don't be disheartened if your xenia doesn't respond well in your Evo without a little fiddling and adjusting. Xenia loves to be blown around, and the Evo stock equipment doesn't give the tank a lot of flow. I'd get a small powerhead if you find flow to be insufficient.
I'm having some difficulty in keeping this coral myself in my Evo with stock lighting. I think it's just too bright, or perhaps has the wrong spectrum for it. I have an out-of-control Xenia problem in one tank with broken lighting, and it's doing well (maybe a little too well) in another tank with cheap lighting off of Amazon, so it may just prefer lower PAR.