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Hey MSH, good grow, and creative speaker box! I have been trying to get some seedlings going in a similar sized setup, but I think I'm killing them due to high air exchange and low humidity -- do you rmember how your humidity was with the seedling? Also, what is your ph that you use? I had...

With your temps, see If you could isolate your Cfls from your grow space with clear plexiglas, with an exhaust fan on the cfl side. It would take some designing, but I do that and it drastically brings down temps. Jacking up your airflow too high will kill humidity and expose your plants to more...

Update: I have learned that maximizing my design for air flow has worked against me, as I am trying to find ways to keep humidity in there (I think I've figured out something that works). A lot of seedlings have died in the veg chamber. Im learning that everything is a balance - increased air...

Nice design, I'm trying to think up a pc case now. In my stealth experience, I would agree with the above comment that blowing air across the light is a good idea. In a pc case, you don't have vert space, so adjustable height lighting is not worth the trouble, IMO (many household objects can be...

looks great - how did you do the swamp cooler? I'd like to set one of those up for my grow, I need some humidity. I'd really like to see some designs if you know of any edit: to clarify what I'm talking about, I'm imagining a way to put some kind of hand-made "evaporative device" on my intakes...

Great, thanks-- I had fed them, but extremely light, and it didn't seem to do more damage than already was taking place. I'll back off the lights a bit and start some new seeds

thanks well, i try to pack in the soil not so tight, but when i water it, everything shrinks down and compacts super tight- i don't know how to avoid that other than adding a shit ton of vermiculite. They are due for a watering tonight, so i will put in just a bit of nutrients. I live in a...

As I said above (in all caps) there have been no nuts used at all. Thanks for the thought though

Should I really be feeding seedlings that are 2 weeks old? It seems impossible to not burn them to death

Hello everyone, I'll try to be as brief as possible seeds: sativa from kindseeds age: about 2 weeks water: directly from a (good) filtered tap water source, it is ph neutral light: one 100w high-spectrum CFL (I started them with a 55 watt and switched after their first true leaves grew out)...

my suggestions: - DO NOT use aluminum foil! Just paint it white, its easier and much more reflective. (This shows how much reading you really have to do before building your box) - You haven't said anything about the hydro system you want to use - if its your first grow, you will prob want to...

I wouldn't rely on a PC fan for that cooling, either. I ran a 150w hps in an enclosed cool tube with 2 pc fans in front of and behind the bulb, and it wasn't really enough (unless you live in a cold climate). If you're dead set on spending less than $30, you can get 6" duct booster fans, which...

Been a while since I've seen this thread, good job man, looking great. I'm thinking of buying a 600w light to put in my cooltube, -- my cab area is pretty small, but I have a really great ventilation setup. I don't know what is overkill, but a buddy of mine said he saw a big difference going...

Yah, I'd say that if you need light blocking, you'll have to really build a box (likely on the outside of your pc box) edit: Your light trap will have to force the light make at least three 90 degree turns to be totally blocking. Without an additional vent, I really dont think a single 90...

Lookin good as always... I gotta learn your magic with the 150w.

Thanks! Yah i cant wait for the next one. Im going to order some new seeds, so any recommendations for a 150w setup would be great! Ive been smoking the popcorn buds, and the high is nice, although its making the back of my throat real dry and sore at times, like when i wake up (un cured bud...

Hey, check out my link to the 150w hps setup, which i used for flowering. This veg system performs well, the ventilated box lowers temps by well over 10 degrees (but its not perfect - still runs 5-7 degrees over amb. temps). I have built a new cabinet, which is still in construction - i will...

The turnout wasn't as good as I had hoped, but it happened, at least. It seemed to take forever, but also this Haze strain isn't supposed to be grown under a 150w hps. Here are pics of the flowering process: When I pulled the plant out of the pot, the roots hadn't really grown past the...

Ok, I cut both of them down last night (pics to come) after a battle against an unknown problem that didn't subside (pics and descriptions here: https://www.rollitup.org/marijuana-plant-problems/385751-yellow-leaves-starting-tips-lots.html). Both plants had the problem at about the same time...

Actually, now that I think back, the wholle plant seemed to get more light sensitive, starting to yellow at the upper most leaves on the cola, which were nearest to the light. Leaves below followed suit, and the leaves which were most preserved were the ones away from the light. I checked the...