I think I have a very simple question. How often should you change your Hydroton? What would be the purpose of changing it.....it still looks fine and I clean it real good after every harvest. I'm hoping that someone is going to tell me that you change to get the bugs out! Zappa
if cleaned and sterilized u can reuse it, the purpose of changing it is because its a pain in the ass to clean, and over time the pellets will become damaged filling ur rez with clay dust.