So your experience with a completely dry rock start up is very similar to mine. I only fought Dinos for the most part, but they were extremely intense. Knock on wood I haven’t seen even a sign of them since adding a uv sterilizer back in the beginning of December. I would estimate it was pretty close to the 10 month mark when I saw the first sign of coralline. I was running a year last October. So it’s been a little shy of 18 months at this point. Sent from my iPhone using Tapatalk Pro