where to find guillards f/2

[blacknife]

looking to start up some phyto instead of buying more expensive storebought stuff,

is there anywhere local to find f/2 or something similar?
or starter cultures?

i was just going to try using the last of my refrigerated stuff to start up but if i have to order some food for the phyto i might as well get some pure cultures to.

[sick lid]

I get mine here. have ordered 3 times without problems.
http://www.reefcrew.com/