RMCG, ya got the idea, LOLs for everyone. Thanks for keeping it lively.
burnzalot, you're talking to a scientist. I think the best way to answer such questions is through good ol' trial and error. If they look hungry that low on the EC then all you've gotta do is add more. :)
gadgetsmoke, you're the shit for taking the initiative to jump on board with a UC and do it right from the get go! Fuck those baby steps playa. :D