depends on what system you use

i use autopots for my hydro system, but they work with organics too

autopots eliminate ph/ec maintenence, and even the need to res change at all! they use no electricity at all, and can completely automate your grow for weeks at a time if you so desired... do a google on them or the smartvalve mk2

they aren't the perfect or greatest system in the world, but they do a damn good job and for pennies compared with the alternative to fully automating your grow... all i ever do is refill my res a couple times every grow when it starts to run low

i wouldn't grow again without them, i use them for all my plants, mj and otherwise
mightymarijuanabuds Reviewed by mightymarijuanabuds on . $600 & LIMITED CLOSET SPACE I would like to know what to do with a $600 limit and only using closet space?? At first, I was going to purchase a Phototron (www.phototron.com), but I read some reviews that stated it should only be used for Mother clones, and not BEGINNERS (Which I am a BEGINNER). I'm just not sure anymore on what to invest in?! I don't have any experience on building a grow-box, but I'm sure that it isn't too hard to make, RIGHT?? Could someone please give me tips on how to use $600 WISELY!? Rating: 5