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Old 07-27-2012, 07:58 PM   #1
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Starting to see some cyano.. why??

So I'm starting to get some cyano, is it cause my photoperiod is too long?

Phosphate: 0ppm
Nitrate: 5ppm

Photoperiod: actinics 10hrs, whites 8hrs. I feel like this is the problem..

Thanks!
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Old 07-27-2012, 08:01 PM   #2
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Im pretty sure that cyano is a bacteria, and not an algae. That would mean it doesnt need light the survive so i dont think its the photoperiod
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Old 07-27-2012, 08:24 PM   #3
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Im pretty sure that cyano is a bacteria, and not an algae. That would mean it doesnt need light the survive so i dont think its the photoperiod
Hmmm, I read somewhere that it was related.. I didn't think about that..

Where's my problem then..?
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Old 07-27-2012, 09:31 PM   #4
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Cyano is not related to photo period it is because the nutrients in your tank are high. your phosphates and nitrates are high causing it to grow if its extremely bad use chemiclean and reduce feeding.
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Old 07-27-2012, 09:34 PM   #5
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Cyano is not related to photo period it is because the nutrients in your tank are high. your phosphates and nitrates are high causing it to grow if its extremely bad use chemiclean and reduce feeding.
You consider 0 phosphates and 5 nitrates high?
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Old 07-27-2012, 09:37 PM   #6
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No I didnt see that sorry. How many times a day do you feed? How bad is the cyano?
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Old 07-27-2012, 09:43 PM   #7
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18 hours is also excessive lighting cut it down to about 13. MInes at 13 with no problems. Sorry I did not read you whole first post.
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Old 07-27-2012, 10:30 PM   #8
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18 hours is also excessive lighting cut it down to about 13. MInes at 13 with no problems. Sorry I did not read you whole first post.
His lights are not on 18 hours. This is what he said: His actinics are on for 10 hours a day and his white lights are on for 8 hours. This just means he turns his actinics on before the rest of his bulbs, and turns them off last.
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Old 07-27-2012, 10:34 PM   #9
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I may be wrong, but I THINK cyano is caused by excess nutrients such as over feeding. Your phosphates may be 0, but remember if algae is present in the tank it could be consuming the phosphates as soon as they show up, this could be why your test reads 0. Perhaps someone more experienced could chime in.
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Old 07-27-2012, 10:54 PM   #10
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Yes, my actinics come on an hour before and off an hour after. So 10hrs of light.

I feed 3x's a week.

I know that cyano is caused by excess, that's why I'm confused. I really have no excess. Its not bad, not a slime carpet, just a pink/red haze on my sand. But still don't like the sight of it.
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