My raised beds are to prevent the rabbits and squirrels and I grow food out there not cannabis, but thank you.
6.8 isn’t a bad runoff especially for how high the ph you put in. Next time you feed or give it water (wait for your soil to dry out and need a watering 1st) aim for a ph of 6.2-6.3 and check the runoff. Let’s figure out what your PPM’s going in and PPM’s coming out are. My ph pens have this feature. Check to see if your ph pen does as well.
Is my soil dry? Lift your buckets are they heavy? If yes; they don’t need water. You can always check by sticking you finger in the soil to the knuckle. If your finger tips wet or moist you’re okay still and don’t need to water.
If you need to water; id recommend not adding nutes this week (your plant doesn’t need them yet this early) and get that water to 6.2-6.3 (ph down from 7.6). A couple of drops of ph down will drop 7.6 to 6.3. The water even with nutrients should have a ph value of 6.0-6.5. Water your plants and test the run off of each plant Individually. 6.0-6.8 is acceptable ranges for slightly acidic soil.
If your water is high pH like mine is (7.5 out of the faucet) ph down is necessary.
The pics you shared of the plants only one looks really troubled, that could be from the high PH water you provided and or the large pots little plants. The struggles of a little plant in a large container with little air is real. If you look around ILGM you’d see a lot of soil growers are using smart pots or aerated bags after they’ve grown out in a solo cup or something similar. These allow for that air to penetrate the the soil while staying dark and dry out the medium faster in comparison to a solid plastic Buckets. Buckets will work fine too if you get some holes in it. We use what we have. Remember every exit can also be an entry so be mindful of small pests (bugs ect)
Other thoughts or recommendations. It’s really helpful to have a hydrometer to gage your humidity and temps. They’re fairly inexpensive, but I understand keeping the cost down. Air flow, air flow, air flow - If you can, an oscillating fan to push air around is a good idea. It can be on a low setting. The fan shouldn’t be blowing directly on your small plants for extended periods, but all around them or slightly over them would help let those girls grow and stay cool. This will also help those stems grow stronger. During the seedling stage of your plants roots are getting established so your plants can pull most of the moisture they need from the air if a humidifier was available. Also not required, but nice to have.
In the pic you shared it appears you have 41 plants or containers going. In a month or two keeping that stealth should be interesting. I don’t know about you, but I can smell cannabis and the unique smell of cannabis plants growing a little ways away.
Keep the pics coming. I want to see how this grow pans out.
Where did you purchase the lights?