Additional LED?

[jason604]

Hey guys I'm planning to get another led fixture to my 75g center braced tank. My LPS has been growing nice and fast but my sps seems to be growing very slow for 7-8 months but color is very nice. I'm currently using the dimmable taotronics fixture exactly the same as this 1

http://www.amazon.com/gp/aw/d/B0092L...110_SY165_QL70

Should I get the same thing or should I try the full spectrum
D12

http://www.reefsupplycanada.com/d120...ight-16-light/

They are pretty much the same price so which do u guys think will be better? Or is light not the problem and just stick to my one fixture? I do get pretty good light spread "I think" except there's some shade right under the brace and far right and left side of tank. Here's a FTS