what size of pots are you using ,
are you in soil ?
if the pots feel light they need watered just ,
some droop after watering then lift again
some droop just before lights out
give us the info , lights , medium , feeding . watering etc
I’m using the Mars hydro ts1000, black gold mix #4 with wormcasting. Using general hydroponics. And using tap water I let sit over night or 2. Giving about 1-2 L of water