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I first noticed this lower leaf problem on May 14th. The top picture was taken that day at about 1:30 PM. The lower picture was taken 19 hours later, on May 15th, about two hours after the lights came on. Whatever the problem might be, it seems to be happening rapidly. I'm thinking it's a...

The goal is to prepare the plants for flowering, beginning in about a week. One plant's tops are 16 inches from the light. The light can't be raised any higher. I have no experience with super cropping. I've only read about it. I have also read that topping the plant may also be an option. The...

Today is the 41st day of this grow. They've been in the Grow #3 log till now. These grew very slowly because of the poor soil I started them in. I'm not likely to use commercial starting soil again. Now they're finally growing well. They look like they're going to be excellent plants. They're...

I'm new to vaping and have decided to buy a vaporizer. I think the new Pax Plus looks good. I have been trying to buy from the Pax website, but it's broken, and it seems no one is checking the error logs. So, now I'm looking for a reliable source and would appreciate recommendations. TIA

I will be harvesting soon so I have been thinking about what might indicate the best time to chop. I am assuming that if the plants are relatively dry when chopped, there would be less risk of mold and the drying period would be shorter. It seems to me it would be better to wait till the...

I am thinking about this video from DeBacco University: Selective Plant Harvest Process of Cannabis The talk is mostly about harvesting the whole plant at once, so I'm wondering about this alternative. I look at my plants and can see that not all the buds are likely to mature at the same time...

Two Black Jack seeds were started January 31st using the paper towel and plastic bag method. Both seeds sprouted and were planted in starter pots February 4th. One seed had about a half-inch tap root. The other had just barely opened. I decided to plant them both because mold appeared near the...

This plant is in the fourth week since the flip. It's in FFHF soil and I'm using FF nutrients at the recommended amount. I also began adding FF Bush Doctor Cal-Mag during the first week of flower. Thinking that is probably is a calcium deficiency, I doubled the dose of Cal-Mag at the last...

This 4K time-lapse video is amazing: Cannabis Seed to Harvest Full Time-Lapse I can watch it on my 1080p computer monitor, so 4K isn't necessary. It looks great on a 4K TV, though.

I'm thinking some folks here might be interested in this. I ordered one of these on the 14th for $63.99. It is due to arrive tomorrow, the 17th. Now it's on sale for $55.99. I bought it because there was a promotion for a free one if we left a positive review. I didn't qualify for the free...

I have a wattage meter on both of my ViparSpectra XS2000 lights. So, during vegetation, I know that I have been running each of them at 140 watts, for a total of 280 watts. For my 2x4 tent, that's 35 watts per square foot. The lights, however, have a combined total rated wattage capability of...

I am flipping my plants this week and have been pondering whether it's best to quick flip or slow flip. By "quick flip" I mean to go from 18-6 to 12-12 in one day. A "slow flip" would be to do it gradually, over a span of several days to a week. On the first day of flip, I changed to 16-8. Next...

This is kinda weird... I have two Android phones with the Photone app installed. The PAR meter readings are very different. The left phone in the pictures is an S22 Ultra and the right phone is a Note8. Here are the two phones side by side in the center of the tent: Here they are at the...

I'm interested in seed germination using hydrogen peroxide and would appreciate some advice about how to do it. (The plants will be grown in soil.) I found this on Leafly: Is a 2:1 solution of water to 3% H2O2 best? Is distilled water necessary? In the past we've used water that has been...

I notices little white spots on the leaves of one of my plants, so I put a fan leaf under the microscope. It was then that I saw little green bugs that look somewhat like spiders. I suspect they're spider mites. You can see one big one and a few smaller ones in the video. What should I do?

I am wondering if perlite is a recommended addition to the soil in fabric pots. If so, how much to use? This is about me thinking ahead to my next grow. I'm planning to use Fox Farm Happy Frog soil in 7-gallon fabric pots. The pots will be elevated by trivets that allow the pots to drain...

We have begun planning our second grow. Our first is about a month away from harvest, so we're looking forward to applying what we have learned. Another positive is that we'll be starting with most of the equipment we'll need. During the first grow, we just added things as issues arose. Strain...

We have two Black Jack autos in our 4x4 tent that sprouted in May. Three months later, they still haven't begun to flower. This is our first crop and we're eager to start our second. We learned a lot and have improved our equipment, so we want to try again soon. So we've decided to flip these...

It's clear I'm going to need a dehumidifier very soon. The RH in the tent is high -- over 68% last night -- and the crop is flowering. At the moment, I favor this one: Hisense 50-Pint 2-Speed Wi-Fi Connected Dehumidifier ENERGY STAR (from Lowe's) It's pricey at $270, but I like that it has WiFi...

We're thinking about adding an in-line fan and have some questions. Would the AC Infinity T4 model be right for our 107 cu ft tent? Would it be better to buy the model with the temperature and humidity controller? Do we need a filter? We aren't worried about the aroma from the plants. Is...