In terms of reflection man I'd say throw some white paper on em. If ya can't spring for some milar just do that. White paper is better than nothing man. I'm also starting my first grow here soon, I know what ya mean about the community. Great people here man, and great vibes. I've learned so much from this forum and you're so right about how addictive it is. Just think how addictive it'll be when we're growing some nice plants man! Good luck with ya grow, I hope all goes well.
), cos if you`re gonna use lemon juice, then I`d guess accuracy will be rather important. I`d also get a basic soil testing kit($20 or less). Very useful for seeing where your ffof is(ph wise), b4 you start adjusting your water! I take it you`re across the pond(hence the usage of the $). I`m not, so not much point in me recommending any meters! But just so you know... 