I know the pictures aren't that great for someone reason my camera won't pick up the algae well. I have this long black hair algae that is growing in between my Zoe and a few other places in my small tank sometimes it looks like a feather. Sometimes I can just pull it out but it grows back really quick. It's a small tank so I can't add tangs. I believe the reason I don't have it in my main reef is because my tangs get it before it gets long. I have tried bumping up my cuc with more snails and crabs but they don't touch it . I would like to try a peroxide dip again but I'm not sure on the correct amount of peroxide to tank water. I killed a few zoes in the past this way. I made sure they were all closed and diped it but they never reopened. I don't believe it's a nutrient issue as I take water from my main tank to do water changes. My nitrate is 5.7 and my phosphate is 0.06. I don't test the small tank but it must be close to levels in display. Can anyone recommend a potential solution? Sorry about the pictures