This hobby is frustrating me. No matter how attentive and meticulous I am, it is always something. I just drove to the worst part of brooklyn to get a co2 tank refill, then I get back only to have my diffuser crack. Who needs this ??? Now I have to wait for delivery, as no diffusers are sold local, and I have to screw around with the flourish excel product when I have rams and riccia in my tank. Anyway, just venting. I also crack my faucet adaptor/nozzzle for my python every other week.