under watering and overwatering can give the same symptoms. I’ve never used a moisture meter other than my finger. I stick my index finger in the dirt in a couple spots down to my second knuckle. If it feels wet I let it go another few hours and check. You’ll get the feel for it and know when your plants need a cold drink. Also lift your pot to feel weight before you water and after you water to judge the weight. Mine were drinking about a half gallon ever 3-4 days and now they’re taking a gallon each every other day still in veg. I alternate fresh ph water one feeding then ph nuetrient water the next. A 600 wt light is plenty good enough but you wanna make sure you’re in the right height range. 24” for veg is good imo but I’d raise it to 30+” for seeds and preveg. The books say When your cotyledons (first leaves that sprout from seed) fall off you’re officially in veg state but I start feeding nuets at 6 weeks from seed in ffof soil. If you start from seed in a 5g pot and never transplanted the nuets will be depleted within that 6 weeks usually if transplanting it’ll take longer so you have to watch the plants. Keep eyes on fan leaves as that’s where your problems will start if you have any. I start at one feed at 1/4 str then the next at 1/2 then keep it at half for a few feedings unless they have deficiency signs then I’ll go to full. Otherwise I stay at half usually. I wait till I see a very slight yellowing of the tips before innuet anything. And I’ll usually pour a gallon through and check runoff. If your run off ppm is low like 250’s -500’s then your soils depleted. Once you know your souls depleted you just start watering nuets every other feeding. Your plants will use what you give as long as the ph range is right. If you’re in soil you wanna be shooting for 6.5 ph every time. The ph of your soil imo doesn’t matter and you’ll just chase your tail. Ppm is only important in runoff for me to know what level my soils at. Other than that I make sure im between 800-1000 ppm in my res at 6.5 and then send it. Hope some of that helps. By no means am I an expert but I’ve learned a lot here and experimenting on my own. A cannabis plant is a very hardy species and can usually survive most situations. Mostly you will get slow growth till you get everything dialed in. My entire grow is automated except watering. Hvac, heat, humidifier, dehumidifier, exhaust fan, lights etc all run off sensors located all around the room that control relays back down at my master panel based of those readings. I monitor temps in 4 locations and also monitor humidity and c02 levels. Same control system that runs a Walmart or heb or any big box grocery store is the same system I have in my room controlling it. If you’ve got the know how, a pi and a bit of python code and a few external relay modules and you can automate your equipment pretty easily. Here’s my girls the other day. Got two clones behind the big ones and the baby in the half gallon milk jug is getting mainlined for a project plant.
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Massive reply haha, thankyou though. i appreciate it.
I've grown before and have a fair idea on nutes and PH etc, i've checked the run off of my plants, went in at 6.5 and come out at 6.5 so no issues there really.
I think whats happened is i've overwatered as it looked underwatered and felt light, i won't be able to lift them soon as there will be a scrog net etc.
I'll let them dry out a bit and use a meter just to be accurate and see if that helps.
I've got the light at 29 inches from last night and made a bit of a difference, but they still sagged this morning as anticipation of the lights turning off i guess.
They're peaked before the lights turn on and look amazing so they know when it's about to turn on too.
