Obviously as the plant grows the water level in my 5 gallon bucket goes down. What do I do in this case? Top it up with nutrient water? Regular water? Change out the entire bucket every time? Does it make a difference based on whether it's in veg or flower? All help is appreciated. THANKS!
Need to know more about the specifics of your setup / ppm / PH etc. But, I generally top up every other day or so with base nutrients. I'm constantly trying to keep my ppm steady or dropping by a small amount, by topping up with nutes. This goes for Veg and flower. Nearing the end of flower my girls eat WAY less nutes, probably 60% full strength. Hope this helps. Any more questions, ask away.