Today is a great day to open your doors and windows and let the fresh air into your home. This will also be a natural way to raise you pH in your aquarium.
FYI on a new product coming that bears looking into. [Info] It looks like there are many new LED lighting options coming out everyday and this is good for those looking to make the conversion.
I posted a 6 part video series on switching from MH to LED lighting presented by the LA Fishguys on the DIY Forum. I hope that you will find this educational and helpful dealing with LED lighting. [The Link]
Here is a six part series on switching to LED lighting on a 500 gal tank.
Part 1
http://www.youtube.com/watch?v=gjDRBYweMJg&feature=related
Part 2
http://www.youtube.com/watch?v=zxSereKMONM&feature=relmfu
Part 3
http://www.youtube.com/watch?v=E-LEVQj0bPc&feature=relmfu