If you don’t have a growlog please answer these questions.
What strain are you growing? Is it Auto, Fem or Reg?
Are you growing Indoor or outdoor?
Are you using nutrients? Which ones? How much?
I dont no what for strain
I am growing indoor Temperatur is 23 grad
56%
I dont use nutrients
Without pics it’s impossible to know. We need to know what you are growing, how old they are and how they look so we can help. Pictures definitely make it a lot easier.
They are struggling because they are too wet (at least this is what it looks like from the pics), so adding more moisture or trapping it inside would make things worse.
You need to let them dry until the pots feel light as air, then water with maximum 25-50ml water. Pick up the pot and remember how heavy it feels. Then wait again until they feel light. Then water again. If you are not sure, pick up the pots - if they feel heavy, wait. If they feel light, water.
If they stay wet the roots cannot breathe, and will effectively suffocate, leading to stunted growth.