My new LED setup

Well basically I got tired of high electricity bills and decided to trade my 4 solistek 88 hoods and 4 solistek STK 1000 ballasts. What I got in the deal was 2 Mars II 700 watt panels and 4 of the 192x3W panels from top led. So far I am very happy with what is going on with new growth daily. Now to get rid of the other 4 ballasts and hoods in my 2nd room so I can buy a few more of these panels. Here's a pic, does anyone have any advice for an LED newbie?

What is this "LED" you speak of?

Some folks find that when switching to LED they have to add more Calcium or if they didnt add Calcium to the Nute regime they now do. More so if your using a Hydro Medium rather then soil.

Thanks and yes I use RO water so cal mag is always part of the feeding program.