Red Turf Algae and how I beat it!!

Pufferpunk be careful. tangs are aggresive toward each other.Its best to only keep one per tank unless added at the same time from what I understand.
 
What kind of tangs do you have? I have a pincushion urchin that scours the rocks but skips the turf.Marine life is totally unpredictable.
 
Oh, I thought it was the fact I haven't changed my RO filters in 2 years... Dumb meter still said 000 on there, just took forever to make water. Now that I've changed the filters, it says 009 going in & 012 coming out!
 
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