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Old 09-19-2010, 09:13 PM
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Quote:
Originally Posted by Greenmaster View Post
Maybe because the temp of the water is down, now that the summer is over, so the corals are not using as much calcium?

Nope. We have air conditioning. Tank temp stays pretty constant.
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Old 09-19-2010, 10:15 PM
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Was just a guess... Does your tank get any light from outside?
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Old 09-20-2010, 12:08 AM
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Lance, any chance that you accidently mucked up the recipie? perhaps a double batch or something?
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Old 09-20-2010, 12:56 AM
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Lance, any chance that you accidently mucked up the recipie? perhaps a double batch or something?

I don't see how I could have. Simple recipe: 2 cups of calcium chloride to 1 gallon of water. Pretty hard to screw that up, and I never, seldom, sometimes, frequently make mistakes.
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Old 09-20-2010, 02:07 AM
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I'm not sure but we have been having a lot less sun and the days are getting shorter... maybe that has caused your calcium consumption to go down.
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Old 09-20-2010, 03:50 AM
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Quote:
Originally Posted by Greenmaster View Post
I'm not sure but we have been having a lot less sun and the days are getting shorter... maybe that has caused your calcium consumption to go down.

Anything is possible I guess, but the corals are growing well so assumedly consumption shouldn't be down.
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Old 09-20-2010, 06:15 AM
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I assume you've double checked the test kit....

I don't use that method of Ca/Alk supplementation, but it is obvious that there are only two variables in play...

1) the concentration of the mix (if the supplier changed something, how would you know?)
2) the amount you add over time.

So..you can measure the volume that the pump is adding over time, so you know is unchanged.

You have no way to measure the concentration of your mix. You need to find a system that will enable you to check on the concentration of your mix. It won't tell you if this particular batch is wrong, but it will save you next time something goes off. Maybe you can dilute a sample 10:1 with RO and use your test kit to measure Ca/Alk/Mg. Maybe you can get a SpG reading?
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Old 09-20-2010, 12:51 AM
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Quote:
Originally Posted by Greenmaster View Post
Was just a guess... Does your tank get any light from outside?

Yes a little in the afternoon.
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