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This thread talks about making a grow tent cheap with screws, panda, etc. https://www.rollitup.org/grow-room-design-setup/379192-you-said-you-want-grow.html

Wondering if this is possible - say I grow a male and female together - same strain, possibly good genetics. I get seeds. Will the quality of these seeds - the genetics be primarily a result of how well the female (and male?) were grown? (at least somewhat?) If so, does it make sense...

Ok, so watching the video and reading up, I understand how to measure ph, adjust ph and so on. But, my question is - what about the MEDIA? Does it not have an impact? Media such as Pro Mix, or Miracle Grow, or even hydroton / perlite - do they not have a ph? So wouldn't the water have to be...

Can someone recommend a decent, but cheap PH gauge? (under $50 would be nice) I have a rapitest analog style ph meter, but I do not trust it. I read that digital ph meters need calibration, special treatment with chemicals for storage, cleaning, etc. is that true? I am hoping for something...

Just wondering if this would work -- say I have a screen pot (pot with holes in it) - 6", fill it with hydroton. Could I use that wick style? For example, run a cotton wick in to the container, or set the container so the bottom is sitting in water/nutes, or similar? Would I need to...

I had built one of these a couple years ago - I had great results with it, nice big plant. Only problem is that the box is BIG, so it takes up a lot of space - horizontally and vertically. Also, I think it is overkill for one plant. You could plant two in there, but I have read that it is...

I have seen mention that it may be possible for a male to turn hermaphrodite - is this true? If so, HOW? For example, I have a male that has been in flowering for about a week now - do I switch light cycles, or ? I also have cuttings from this male, would it be better to do something with...

pictures here https://www.rollitup.org/blogs/blog3356-problem-today-please-help-leaves.html about a week of flowering 12/12 with CFL's (2700k) sort of a wick-style watering system with miracle grow soil

If a plant is ready to go in to flowering from 24/0 using 6500k bulbs, and I am switching to 12/12 light cycle, when do I switch the bulbs to 2700k? Right away, or should I leave the 6500k's in for some period of time?

Agree with the amount of air flow in vs. air flow out, check that. Also, if smell is ok around the room, that means walls are sealed well and carbon filter is working. BUT, if smell is above the room, then there is a leak there - the ceiling of the room, or even at/in the walls of the room ??

I used cardboard boxes and wrote on them. In my case, I had a shelf high up, you need a small ladder to get to it anyway, but to make sure you can not see what is there, I cut the back side of cardboard boxes - so from the front and sides it looks like an ordinary stack of boxes, labeled...

just wondering what / if people use web cams to monitor their plants, if so , what kind? I thought it would be nice to have something where I could keep an eye on the height, and maybe something good enough quality that I can zoom in and look at the leaves, etc. Most of the ip / wifi web cams...

So I read that the max temperature you want is 85 degrees (ideal is 75). Even with my lights off, I am going to have a couple months or more where the temp is up at 85 or higher. With the lights on, the temp seems to spike up 10-20 degrees. SO, is it reasonable / possible for me to turn all...

So do you think the mini fridge idea would work ? I saw a couple - there are the normal ones that have a freezer part, and then these newer ones that have no freezer or compressor: http://www.walmart.com/ip/Black-Decker-Nucool-1.7-cu.-ft.-Compact-Fridge-Black/11016394

I am trying to figure out how to handle keeping a cabinet cool in a garage. The problem is the temperature can hit 90deg + outside, which means the garage is going to get close to that or match it. A full sized A/C is not practical, it would be too big, too loud, and ruin most of the stealth...

anyone considered buying one of those electric coolers - thermo electric - and take it apart and adapt it to the grow box? I am sure it would not cool a large area, but maybe it would work if you only needed 10 deg. drop ?? you could wire it up to a thermostat that would turn it on/off...