Hello everyone!!! I'm not new to Hydroponics. Currently have a problem with a particular strain (blue dream) clones shuld take off by now, but the problem repeat for the third time with new clones! about 4 days after entering the system they look like this. why the plans wont grow?? ph-5.8 ppm-500 (from RO) only lucas 18c
Your ppms seem pretty high for a new clone in an rdwc. Try shooting for half that. ••••••••••••••••••••••• RDWC | 4x4 | 4-300w LED
My thought is to much N, tips are burnt and leaves are puffy. No signs of spotting which is good, and the roots look fine. And it's also possible that you have to much light as well.
Are you using ca/mg? There's either a deficiency because of the way you are mixing your nutes, or missing ca/mg - or there's an issue in the root zone causing it to not be able to uptake. Do you have some sort of absorbent rooting plug under the hydroton? Often these can stay too wet inside the netpot and hold too much water, causing overwatering symptoms and deficiencies. If you do, I'd either raise the plug up if possible, so that it can drain better - or lower the water level a bit.