Hello rootsruler. I finally got my few started. So far,so good. Only about two weeks. It seems that you have more knowledge about this then I will ever have. I took your advice and got the vs1500 lights. Thanks. Now I have a question about cal mag. I got the flora trio I think it's called but haven't started with it yet. I see some cal mag has a little nitrogen in it,some seems to have a lot and some doesn't have any. Which kind would you recommend? The flora trio stuff has nitrogen in it but I'm just not sure which cal mag to get. Thanks in advance. It looks like you do amazing things