twomonsters

I call on the Saltwater Gods to come forth and enlighten me with knowledge. Haha.

So with winter starting to set in, and more than a few empty aquariums laying around I ask the remote deep sand bed question.

Good or bad, and how many of you reef aholics run them?

My nitrates stay in the 10-15ppm range.

A little background,
90 AGA RR 50 Cree LED's with Apex control 50 gal sump Reef Octo 190 lbs live rock Vortech MP40w Tunze 6045 Blueline ...

My tank has been up for over 2 years now and I just cannot get much coralline to grow. Seems like it does ok on the rock but none on the back glass and barely any on the overflow for a tank being this old. Whats the secret to success? Here are my parameters,

CA 500
NO3 15
phos 0
KH 10
Salinity 1.025

I do a 15% W/C every week.