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Could anyone tell me please how much SM-90 I should put in one gallon of water? I am combating spider mites. Thank you.

Thank you.

I've always used this water but up until last week I had some potassium chloride mixed with the water. I also use water filter (Hydro Logic Big Boy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH). I use FoxFarm Ocean Forest soil in 5 gallon Smart Pots.

This is my first grow. It is OG but don't know what specific strain.

Tomatoes? :)

Actually yes, I do. My water source is from an artesian well and I've been mixing potassium chloride to soften it. I just realized I ran out of it and need to get some. So you think this is because of hard water? Thanks.

My plants are into 5th week of flowering. I know that towards the end the leaves turn to yellow but this is bit too early. The leaves are turning bright yellow all over and not just the fan leaves. I'd appreciate if you guys could chime in and help me figure out what is causing this. My PH...

I am having the same issue. The leaves are turning bright yellow and not just the fan leaves and not just the bottom but all over. I have been told it is a ph issue.

Thank you. Is it used as a preventative measure or to combat PM? Also, can it be used in veg as well as in flower?

Thank you. I will look intonepsom salt. How do I administer it? I have a 55 gallon barel.

I really thank you guys for chiming in and helping. I hope one day I can be of help to others here.

Well I am a novice grower and rely entirely on the guy's advice who is helping me grow. Although I told him I was watering when I notice the mold he did not tell me that sulfur and water don't go together. He also did not tell me I had to turn off the lights among other things. So I am...

Thank you. I already have one humidifier in the room but I will get another one to keep the humidity in check. I plan on using few plants this time around, 5 per 1000w Gavita instead of 10.

Thank you friend. I thought about it but read somewhere that I will risk them turning into hermies and in the process waste another three weeks. I will wait for few days and see if they develop any new growth. If they do then I'll stick with it to the end. If not then I am thinking about...

The plants are a generic OG. I got the clones from a friend who praised them a lot. They were wonderful and happy until I burned the sulfur for two hours. I don't know whether this is residue or what but I can't beare the sight. It's pretty heart breaking. All the hard work seems to have...

They are in the 1st week of flowering. I hope I can bring them back.

So, I am a first time grower. All was going well until I noticed powdery mildew PM. I used half a cup of sulfur for 22x22 area (2 car garage). The plants are in their first week of flowering. I burned it for two hours. When the smoke had cleared this is what I saw. It broke my heart. Is there...