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#1
03-18-2008, 05:26 PM
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When you say bigger contributors...what do you mean. I'm getting some hair algae for the very first time since I started my tank over two years ago and my Calcium and Alk are very high. Mag is normal.
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Mark...  290g Peninsula Display, 425g total volume. Setup Jan 2013. 
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#2
03-18-2008, 05:53 PM
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A lot of people who are having hair algae issues have low calcium, alkalinity, and magnesium. The latter two being more significant. Saying your cal and alk are "high", and your mg is "normal" doesn't say anything...what are they actually at?
A prime example...I noticed the tiniest of shoots of hair algae in my tank, so I tested my parameters which I haven't done in awhile. Hehe...oops. My magnesium was down around 1250 ppm, my alkalinity was just over 7 dKH, and my calcium was down at 370. I brought my mg back up to 1400, and my alk back to 9-10, and my calcium to 430, and poof hair algae gone. I didn't do anything else to the tank. My tank hasn't had hair algae since it was first cycling over a year ago, so I knew something was up. "Everyone" knows that nitrates and phosphates are significant contributors to algaes in general, but keeping all your parameters in check is important even in FO tanks. 
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#3
03-18-2008, 07:12 PM
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Well, just tested last night.
Cal at 500 alk at 12 Mg at 1450 Salfert and hagen test kits used on every test in order to double check.
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Mark... 290g Peninsula Display, 425g total volume. Setup Jan 2013.
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