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Old 08-09-2011, 01:41 PM
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Originally Posted by Aquattro View Post
I'm guessing this has some influence on PE. The one difference from before/after for me is my alk is higher. I saw a tank today with huge PE, alk was at 6...
I always did keep my Alk a couple points higher than most people also...

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Old 08-09-2011, 04:18 PM
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My PE is decent during the day, and crazy at night. Alk is low - 6 - 6.5 dKh, Ca 400 - 440, Mg 1350.

I noticed before that with an angelfish in the tank for a few weeks there was less PE on a few pieces it liked to nibble on, but other corals it left alone always had pretty good PE.
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Old 08-09-2011, 05:45 PM
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My PE is decent during the day, and crazy at night. Alk is low - 6 - 6.5 dKh
Hmm, starting to see a pattern. anyone else want to corroborate??
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Old 08-12-2011, 03:19 AM
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Update: As of today, I can see quite a bit more PE than previously. Wayne (rice reef) was just by with his macro lens and we can see PE on almost every piece.
Today my alk was 6dkh, so this follows along with my thinking high alk affects PE. However, I've also reduced my zeo dosing and have been adding a bit of potassium, so I can't be sure the exact reason, although my prime suspect is the alk...
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Old 03-29-2013, 02:40 PM
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Interesting conclusion. It make sense after reading all that thread. I never wonder why I had such good polyp extention. It was there and I thought it was the norm.

I have a red planet frag in direct current and there is bearely any polyp extention although it's growing and incrusting at the base. I think a strong direct current is not helping either.

Also sometimes I had my alkalinity go higher and it did not affect the extention. Once it was at 12 for a white until I calibrated my dosing pump properly. Now I keep it between 6.5 and 8.
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