Bad Hair Algae

[dsaundry]

Looking at your last reading, I might suggest you bump the salinity up to 1.023. One question I have though is what type of salt are you using. I was told by another reefer that for reef tanks he found that TM worked best for him. Less dosing was one of the benefits he stated. I am going to try it next time but right now I am using IO in my 72g. I did have a hair algae issue a little while ago and in my case narrowed it down to overfeeding. I didn't think I was at first but after looking at how some other reefers fed their tank I determined I was. I seem to have it under control as in the last 2 weeks it has virtually dissappeared. I also used rowaphos in my aquaclear 500 as well.
Hope this helps.