I have a renewed tank, I was downsizing, but in the process, I had a complete wipeout, two tangs survived. Even my indestructible giant hairy green shroom didn't make it. Btw, I am looking for one soon. My new tank was way too clean, so I had some dyno issues. I started adding some Microbacter 7, with some manual removal and it started to go away. Soon after cyano made its appearance. I continued to dose with Micro, and within a month, both dinos and cyano were gone. I did reduce water changes too for now. Will restart them this week. Tank is a bit dirtier, but I will live with it for now.