Friends who know DWC help me figure it out!!! please!!!

I change every 2-4 weeks in veg and every week in flower in a RDWC but with a DWC you should change once a week.

how often should I change the solution in the system? every two weeks? or less often? or vice versa more often?

Seedlings in their first or second week do not need many nutrients but they have to have some, particularly in DWC.. a ppm of 200-300 is ideal. You can increase the ppm by 100-200 every week... Keep the roots/water without light so bacteria doesn't grow... and start a diary for this grow! My first attempt at DWC was hilariously filled with mistakes and the plant has suffered a lot - but is still growing well and going to be great... my second DWC has benefitted from all the learning those mistakes made me do... If you can get it down, if you can learn, you're going to love DWC.... Good luck!

You need some nutes at all times in DWC. Not a full feed but EC around .5-.75 should be fine

Lack of food. Get your ppm to 300

dear friends! I don't know what's the matter anymore, I'm hoping for your advice! tell me what I'm doing wrong or what's not working for me! at first they told me that I start feeding early, but now the plant is on the water and still the same symptoms dry the tips of the leaves! I don't know what's the matter anymore! I ask you to help me finally figure out my problem!!! thank you all in advance! and peace to all!