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Growing in a big DWC set up and in need of using H2O2 to keep the system clean and free from disease. I have been using the entire GH line (most of it at least) in my previous grows, but wanted to try and mix in the H2O2 into my next grow. I know the Floralicious and FloraBlend are organic...

I know there must be several threads on the site already where I could find my answer, but I am having no success with my search. So a little help pointing me in the right direction to a thread, a chart, or a simple answer would be much appreciated. I am using the full line of GH in a DWC...

I was thinking about starting my plants with a 1,000 watt light for the 1st half of flower cycle and then switching over to a 600 watt light for the 2nd half of their lives. I have 2 systems that are both 3 feet wide by 5 feet long and a light mover on each. So the 600 is enough, but the...

i noticed that a couple of the clones i put out to flower did not grow at all, but instead went right to producing resin and bud. the rest of them stretched and grew as normal, but these 2 decided to get all weird on me, despite being identical clones as all the others. anyone have this...

I had gnats, but I was able to kill them off after a few pythium bombs and a hot shot pest strip. But these things won't die. Little white/clear bugs that fall out of the bud as I am trimming it. They hop away really fast, but I was able to squish this one. The picture is about 50x...

This is a reoccurring problem now. My last crop had the same problem, which progressively got worse over time. Using the entire GH line and this latest crop is 3-1/2 weeks into flower. It is starting to show the same signs as the last crop which eventually had all of the leaves die or get...

On General Hydroponics website they are giving contradictory instructions. On their chart it clearly tells you to use Koolbloom at half strength during transition from grow to bloom, full strength during bloom, and none at all during the "ripening" phase...

I have hundreds of these things running around in my garage all the sudden (my grow room is located in the garage as well, but these are mostly outside of the grow room SO FAR). I recently got some deliveries and I also purchased some pond liner from the garden section of Home Depot. The...

I noticed these little bugs hoping around on the floor of my garage awhile back. The big ones are about the size of a flea (but long, relatively flat, and skinny) and the babies are noticeably smaller, but still visible to the naked eye. Well, they were only on the floor (in my grow...

I already have an S&P inline fan that will pull/push 530CFM. Now I am looking to get a carbon filter (a Phresh 750 or 950) for a room that is 12x12x8. They offer carbon filters with a 500CFM rating, but those are simply not good enough for my room size and set up (based on their chart)...

I have a sealed room, but as most of you probably know, there's no such thing as 100% when it comes to sealing a room. So some of the odor still leaks out. I was thinking to get an inline fan and a big carbon filter and just putting it in the middle of my room. No exhausting it (I dont...

Suddenly my water went from hard (300 PPM) to extremely hard (1,000 PPM). I don't know what caused this change (it's well water), but its been holding steady between 900 and 1,000 for a good while now. 2 questions: #1 - it seems obvious to me that this simply will not work. Even with the...

I've had these things growing for over 9 weeks now (from seed), but they still aren't showing clear signs of sex. I've only grown feminized plants thus far, but these were the X-Mas freebies (OG18xSkunk) so I wanted to grown them out and see what they were all about. All 3 are huge, but not a...

When I started with DWC I went with what everyone told me and I filled my reservoir all the way up to just under the net pots. But later I found out that my roots were much healthier and my plants grew more vigorously if I lowered that by a few inches. It gives the roots constant oxygen and...

Would chopping the plant in half like that possibly cause it to hermie? The bottom half could certainly go another week or more, but I don't want to chance it if they can hermie. any thoughts? experience? ty

I have grown a few times now and I initially made sure to change my reservoir every 10-14 days as so many here have suggested. I then went to changing it once a month (basically 1 change on an 8 week flowering cycle). This last time I didn't even change it at all. I did not notice any...

1st couple of go arounds I was having major issues due to extremely low humidity, but since that time I have added a homemade dome and a humidifier. Getting nearly 100% on the clones now. Problem is that it takes too long. I hear people talking about 8-10 days and they are ready to move...

I have two systems in one room. Just trimming the 1st and I have found random seeds in a couple of the plants. I am wondering if I should worry about the second system being pollinated as well? Should I pull everything out and bleach the room or is it too late and pointless to do that now...

A hose exploded in my drying room. All of the hanging buds got soaked. What should I do? Right now I have a fan blowing on them (on low) and I put the dehumidifier in the room. I normally keep the humidity right at 50%, but I obviously need to get these things dried up a bit. the leaves...

Does marijuana have an effect on cholesterol, good or bad?