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Old 06-01-2013, 06:26 PM   #1
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KH help!

Using API test 16 drops before it changes! Says 12 is 214.8ppm and marine life should be between 140-200ppm!

I just started testing KH so I'm still trying to figure it out.

Just before this post I checked parameters... All at 0 except PH was 7.4, this is the first time I've seen a swing in the PH. From what I've read (and I'm still left a bit confused) KH and PH will effect one another.

Also running phos guard (been two weeks now) it's testing 0 but I have hair algae and my guess is that's where it's coming from. I'm doing 40% WC weekly to try and get rid of the hair. Looks like its changing to cyano now!

My Duncan was closed up yesterday that's what told me something was wrong. Today I've tested for everything I have a test for. But I'd like to know more about KH. Why it's so high? How to lower it? Please help, what do I do? Need a little education
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Old 06-01-2013, 07:22 PM   #2
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The PH has an inverse interaction with KH. One way of increasing PH Is by enough water surface agitation with power head. While pwc can gradually reduce your alkalinity (kh). Your calcium also has an inverse reaction with KH. Having such parameter characteristics your calcium will never go up with abnormally high KH. Using high grade salt mix would also help.
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Old 06-01-2013, 07:51 PM   #3
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The PH has an inverse interaction with KH. One way of increasing PH Is by enough water surface agitation with power head. While pwc can gradually reduce your alkalinity (kh). Your calcium also has an inverse reaction with KH. Having such parameter characteristics your calcium will never go up with abnormally high KH. Using high grade salt mix would also help.
So how do I get the KH down? Water changes? Because I feel like I'm doing a lot now (40% weekly). And calcium is low too.
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Old 06-01-2013, 08:12 PM   #4
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What salt brand are you using? Also API is one of the most inaccurate tests kits. I would have it double checked with either Red Sea Pro or Salifert kit
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Old 06-01-2013, 08:18 PM   #5
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So how do I get the KH down? Water changes? Because I feel like I'm doing a lot now (40% weekly). And calcium is low too.
As I mentioned, water surface agitation and pwc plus using good guality salt mix. Avoid dosing anything. Hair algae is a different issue.
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Old 06-01-2013, 08:18 PM   #6
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+1 get a better test kit or have it checked by your LFS. Make sure they use a decent brand as described above. I doubt your dKH is that high.

40% weekly pwc's is also a bit high. Any particular reason you're doing that much that often?
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Old 06-01-2013, 09:42 PM   #7
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+1 get a better test kit or have it checked by your LFS. Make sure they use a decent brand as described above. I doubt your dKH is that high.

40% weekly pwc's is also a bit high. Any particular reason you're doing that much that often?
Posted above trying to get phos down, thinking this is my hair algae problem.
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Old 06-01-2013, 09:43 PM   #8
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What salt brand are you using? Also API is one of the most inaccurate tests kits. I would have it double checked with either Red Sea Pro or Salifert kit
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Old 06-01-2013, 09:45 PM   #9
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Think tomorrow I'll call my LFS and see what brand of KH test they use and maybe bring a sample to them.
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Old 06-01-2013, 09:46 PM   #10
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Posted above trying to get phos down, thinking this is my hair algae problem.
If your phosphates are high, think maybe you're overfeeding? how much and how often do you feed your tank?
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