4xCM 100x100tent 400w hempy bucket scrog

I see you haven't yet resolved this question Telttailija perhaps its because you were looking for more information about topping? The primary thing to understand about topping a plant is whats known as apical dominance. The Apical node(highest) produces an Auxin(hormones) that inhibits the ability for 'lateral dormant' nodes(lower ones) to collect nutrients allowing the top most apical site to receive more nutrients and hormones for itself! (GREEDY!!) When you top a plant you are removing the Apically dominant node and creating new ones in its place from the two closes later dormant nodes. This is very handy in allowing to to spread out the growth of your plant across a space as apposed to up in the air! Fancy huh? Hope I helped you resolved this question and gave you insight into WHY you top so that you can better determine when to top (I personally top on the 4th node.) Feel free to ask any more questions! 😎

Hello @Telttailija !First of all if the RH is truly 10% you seriously need to fix it. At 28 °C the humidity should be at 75% - 80%. What you have there is a nitrogen deficiency and it's not coming from a PH problem. It's not from a PH problem because nitrogen is simply available at all PH range from 5 - 7.5 when growing in hydroponic mediums and for the first days of their life they were at rock wool which is a hydroponic medium. Also if the roots had touched the soil and the PH was out of range they should be having more deficiencies plus you can't mess up the soil PH by watering a couple of times with 6 PH. The problem is that you used a rock wool for the germination. Rock wool has no nutrients and you have to water with an EC around 0.8 ms/cm ( you need to buy an EC/PPM meter ) and in the hydroponic PH range from day 2. Also rock wool needs very often watering ( especially if you have 10 % RH and 28 °C ) so you might have also under watered at some point. Any way grab an EC/PPM meter and start feeding with 0.8 ms/cm until the roots touch the soil or just wait till they touch the soil anyway and the plants will start growing better and greener. Off course don't top them until they come back. Happy growing ! 👊

hello good question, in my opinion this is environmental. your humidity is very low. plants in this stage require higher humidity if possible. like in the 50-60% range. maybe this is affecting the growth rate as well as pH level in soil? either way soil pH is a bit low also and should hang around 6.7 for soil. to remedy possibly add root auxins (horomones to promote root growth and help plants that at in shock or stunted.) add a "passive humidifier" if nothing else to help remedy humidy being so low. to fic pH problem flush with clean, properly pH'd water (spring water if possible) lastly proper foliar feeds work wonders if getting a plant to bounce back to health.they should pick up growth soon hang in there!