I added 7,5ml of Bio Grow, 7,5ml of Bio Bloom and 3ml of Top Max in 5 liters.
These days I'm using rainwater and to lower the pH I use wine vinegar.
Now the night temperature easily reaches 21/22
For my mistake in the middle of the week I realized I was they are slightly over fert, in fact some leaves have been slightly burned but for now nothing serious