First Grow

My indoor seedlings did just this same thing, small discoloration and mild curling. I've read its pretty common for the cotyledons to turn out this way and not to worry. Just make sure you've got decent humidity(maybe a cup over the top), good drainage holes, a good temperature and decent light but not excessively intense . I too have a basement and wow is it difficult to keep up the overall room temperature unless i have a heater run nonstop. The best i can do is have them in a tent or enclosed space and allow my lights to help with the temp and then boost mildly with a heater during the dark hours. I see your plants looking healthy this week so good job on keeping up the battle.✌️

Hey there so first with the rh/temp I'm constantly hearing about vpd(vapor pressure deficit) and that's essentially what that is heat and humidity. I was always thinking that high humidity in veg is great of coarse, the swampier the better, but flowering I'd always heard around 50% and a variety of temps but typically 70 degrees F. But now I'm hearing more about keeping things around 75 heat and 70% humidty is a good range to be...something about keeping things consistent is always a plus so if you choose lower rh for fear of pm etc then try to at least keep it constant. The fluctuation is sometimes what will cause more damage than running a higher rh or temp. With the ppm i believe it goes 0(RO water/distilled) -400(ive heard 700 also) being very hard water, and then as you add nutrients it will increase beyond that. If you have a tds meter with your ph pen that will check your plain water(tap or otherwise). Your nutrient water should fall somewhere in the 400-800 range, but that'll all depend upon your original water reading. You could increase the ppm either by using tap water versus r.o or i suppose by increasing the nutrients, basically use nutrient rich water. Science! Isn't it amazing and exhausting all at the same time? 😊

Keep going 😁👍 everything looks super.👌 Stay 1/3 - 2/3 with nutrients to dont overfeed her. Maybe you can go closer with your leds but i dont know which lights you use 😅 Good luck ✌️

So essentially whats going to happen if you over feed in a soil medium is that it will retain for much much longer then say a soiless or hydroponic set up . With that being said if you noticed nutrient burn and then slowed down because you seen that you did well the only thing I would have changed is to feed it PH corrected water until the issue was resolved and not lower the dossages . To me your plant looks like its suffering from nitrogen toxicity , you wanna line up your nutrient solution to be more PK oriented because the formation of flowers is really really dependent on it in flowering . The signs for nitrogen toxicity are as follow's the leaves start to really darken and then the tips elongate and make a claw like effect which growers will call "Clawing". So for time being I would recommend that only feed with PH corrected water because to me there is still lots and lots and lots of nutrients in the soil . One thing about nutrients is that typically people wont start feeding the plant nutrients until its showing a sign of deficiency this way you can prevent over feeding leading to toxic levels . I hope this information helps you understand whats happening here and the very easy way you can fix it :) . I wish you the best of luck and your plants a speedy recovery ! -Happy Growing!