No they are fine regardless of their Kelvins but I'm just telling you about what would be optimal. As for the HPS:

http://dyna-brite.com/Merchant2/merchant.mvc?
http://www.bghydro.com/BGH/items.asp...atus=1&Tp=&Bc=
http://futuregarden.com/cgi-bin/shop...lmenu=lighting

There you go cutie pie.