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You need to understand something about marijuana. Some strains are very easy to grow and some strains aren't. If someone says they never set pH and their plants are always awesome it is due to a few things. Usually it's because they grow easy strains exclusively. Sometimes their tap water is...

If you have spider mites it's considered "the best practice" to kill off any plants and start over. Usually when this happens to a gardener he/she has a lot of gorgeous plants in various stages of growth and it is a nightmare but you have a little pitiful plant barely alive. Throw it away. You...

Dual hose a/c that just cool the condenser need to be sealed up tight around the condenser in some cases and they are very inefficient. The window a/c unit you have likely needs to be sealed also and that's your most economic go to move for now. The best option is either a mini split or another...

Just organic soil and the compost if you need anything else you can add it organically as it is described in the stickies here, by members as I linked an example earlier and of course Google. In addition there are sticky posts at the top in this section and the subcool section that I refer to...

Ordering things to your home through the internet let's strangers know you are growing and where. Don't order to your grow. It's probably not a great idea to use your IP to log onto forums if you are growing where you live. When I grew where I lived I left the forums for years, now I have that...

You save the leaves and grass clippings that fall into your yard. You mix in some other organic amendments and cook it all together this is called composting. This makes super soil you use this for your flowering phase. For veg you can use bagged organic soils such as Roots Organic or a lessor...

Don't make the mistake of thinking hydro is better than organic soil. Hydro does have a faster veg rate but by the time it gets to flower most of the advantages are lost as the root zone fills up. So there's not actually a notable difference in flowering plants, i.e. we all get around 1.0gpw -...

Yeah you can use 6500K or daylight fluorescent bulbs that's considered the veg bulb. I don't see a Nitrogen problem I do however see pH fluctuations which is likely because you give them different things when you water. It's always best to do the same thing every time when possible, consistent...

We need two values not just amps. It's amps * volts... For measuring device output we always use watts even with little dc electric motors we measure output in watts. P(W) = I(A) × V(V) (WATTS EQUALS, AMPS TIMES VOLTS) I(A) = P(W) / V(V) (AMPS EQUALS, WATTS DIVIDED BY VOLTS) Just because we...

Even top quality clean hood glass has light loss and I believe it will block UV-B where applicable also. It's not the specific bat wing reflector making the difference it's the fact that the bulb is uncovered so there's nothing blocking the light. I hear you thinking but the bulb is encased in...

You could have a separate veg tent just using fluorescent lights. Plants grown under fluorescent are always exceptionally healthy with thicker stems in my experience partly because it takes a little longer and also I bend my stems weekly. Stem size = Bud size that's pretty easy to guess. So the...

So did you check the roots? It is important.

Yeah looks like heat stress, too warm of water or root zone issues as the above poster mentioned. Not supposed to use black for your dwc container because it absorbs heat and we need cold water to grow. If it doesn't have root issues then check the temp of your water or even heat in the room can...

Sorry I read your soil wrong. If it's excess Nitrogen you flush and that's also an acceptable course of action for pH hot spots. Lately I been reading posts by folks claiming that flushing is a myth it doesn't really help. So I think my suggestion might be controversial even though I know...

Yeah your math is correct. DWC in the summer heat, hmmm. Hopefully you can keep your water below 70F if not then it lacks the oxygen to make DWC growing truly effective. If you're running higher water temps definitely consider Botanicare Hydroguard. I live in a cooler area than you do and I...

I think actually it will stabilize on it's own so if the new leaves are fine then it's probably pulling out. The damaged leaves may not straighten out, from memory I don't think they every do. But maybe I should mention hard buffering. You are using mostly a soiless mix so Silica might not be a...

Something can't come from nothing so therefore nothing can not exist. If nothing could exist we would be nothing since nothing is the theoretical start. So if nothing can't exist then everything must exist. Therefore somewhere in some plain of reality all things are true. The only real question...

Sorry... Don't worry about long light hours or long dark hours when moving to flower because I don't and I have never had a problem.

Did you grow the seeds out finding them to be exactly what you ordered? No problems getting them to germinate? Made it through flower without problem?

We can build a spinning bar with lights on it without a tesla coil we do stuff like this a lot using contacts. Too much loss in the Tesla coil to be useful.