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Ok, I've noticed spots on the top-sides of lower leaves with black specs on the bottom-side. They've began moving upward and spreading. I've sprayed the leaves with water and it has started to leach nutes from them (turning yellow). I'm wondering if I should spray with 1:1 water & rubbing...

Ok, this is extremely frustrating for me because the textbook fundamentals of botany are being disproved in front of my face; repeatedly. I'm so angry that I had to take pictures so other people could finally see the symptoms I've been trying to describe for years now. Years you may be thinking...

Greetings fellow growers/hobbyists/connoisseurs, I have a pretty strong axial fan (16w) that is used to circulate air in and out of the cab. I have recently added a carbon filter to the system which I think is working at 75% at the moment. I have read that a fellow grower achieved better...

I have been curious for awhile now about how to develop strong roots, since a healthy root system will almost ensure a robust plant that can defend against moisture or pest problems. Of course I have tried searching "developing roots/root systems," but of course there weren't any good results...

I have an ebb&flow system and I have been growing a crop for one month. Everything has been fine, plants grow fast and are very healthy, then over a 1.5 day period, most of the leaves are droopy, and resting on the branches below them. The plant is nice and green and the tops of the buds are...

I have been growing a plant for a month, and it has grown fast and very healthy. Over two days I noticed a few lower food leaves yellowing rapidly and curling. Today, most of the main food leaves (from main stem) are drooping. They don't look dead yet but I know they'll die soon because another...

Greetings, I have a flood & drain setup where the reservoir the the plants sit in is not covered in any way, when the solution is pumped up from the lower reservoir you can see it. I don't seem to have too much of an algae problem yet but I am concerned about the plants becoming root bound...

I have been going back and forth on whether to simply listen to those that say to have PH in high 5.0 values if dealing with hydro and mid 6.0 values when dealing with soil. I thought a simple nutrient uptake chart that shows which nutrients are available at what ph level would help, but two...

Greetings, I have attempted a few different methods of growing and I have now reached the ebb & flow. I am manually performing the flooding and draining by having net pots in rubbermaid containers and filling them so the solution is flush with the top of the rockwool cubes. The solution sits...

Hey. I opened the cab this morning and I noticed that two of my plants are going limp. The sunleaves and tips to the branches are limp as if it's approaching death. When I pick up the dixie cup that they are in there not dried out. These plants have been in the cups for 1 1/2 weeks and I...

In order to see the progress of the nute solution intake, and since the roots arn't kept in this container, and if the solution is changed every 7-10 days, could the resevior be transparent? I have seen hydro systems and reseviors to buy online with no tops so maybe it's ok. Thanks

ok everything was fine with it while in veg. I just got it though (2 days in veg total). Roots were out the bottom of a 2" rockwool cube. This morning, after putting the clone in flower yesterday, I got up to check it and everything was limp. It has been about 7 hours since then and it is still...