Yeah, FFOF has a decent bit of perlite already. I have heard several experienced growers on here say they just use it straight up, no extra perlite, and it works great. On the other hand, many people recommend adding more perlite to FFOF. If your pots are draining well without extra perlite, I think you're plants will be perfectly happy...no need to worry!
Yo Chief do you ever have to use calmag when growing in ffof? I've always had serious problems with ffof, that's the whole reason I switched to hydro. I haven't narrowed down the problem, but the problem is definitely reduced when I feed my ffof plants with calmag, but not prevented or stopped. I'm a ph freak, so I'm always on top of that, but for some reason after about 45 days in ffof my plants lower leaves start to get brown spots and start yellowing. It's beyond me, I've been over the plant abuse chart so many times trying to figure out the problem, but no dice.. Unfortunately I made the decision to put my kandy kush in ffof because she was originally going to be a mother plant, but then I got anxious and decided to take a couple clones and flower her.. Now she's havin the same old problem's of before. I'm armed with calmag plus, flora nova nutes and ph down. I still cant stop the problem. Any Ideas?
I should follow your lead and supplement my 250 with some cfls:o
I'd say go for it man, it doesn't take long to install em and you'll be really glad you did come harvest time. I've seen a major increase in yield since supplementing my 400W HPS with a mix of 2600k and 6500k cfl's. I use the 40w Super Saver ones from Lowes (40W actual use).. They have the highest lumen output per watt of any cfl I've found. If you get to lookin for em, they have a weird little glass tube running up the middle of the coil part of the cfl, cant miss it. I love em and wow did they fatten up the buds that were outta range of the hps.
Edited by 1000Hz, 05 February 2010 - 10:24 AM.