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post #1 of 8 (permalink) Old 01-15-2014, 03:30 PM Thread Starter
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Tds?

Does the TDS goes up in the tank when you do major disturbance, like replanting? I started with 250 TDS and I changed 30% of the water with 0 TDS to lower it down to 150. I adjusted the KH/GH with baking soda and equilibrium. Now the TDS went up to 300, instead of expected 150, Why is that? thanks
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post #2 of 8 (permalink) Old 01-15-2014, 04:46 PM
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This might help you answer your question.

http://en.wikipedia.org/wiki/Total_dissolved_solids


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post #3 of 8 (permalink) Old 01-15-2014, 04:59 PM Thread Starter
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Quote:
Originally Posted by Texan78 View Post
This might help you answer your question.

http://en.wikipedia.org/wiki/Total_dissolved_solids
I guess it does.
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post #4 of 8 (permalink) Old 01-15-2014, 05:08 PM
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When you adjust GH, you're adding magnesium and calcium right? Well, from my understanding, that's a "dissolved solid." This is why I didn't get a TDS meter for my cherries. I think, at least with cherries, that if your params. are in line, then you're okay. It's not like you don't need the GH/kH
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post #5 of 8 (permalink) Old 01-15-2014, 05:11 PM
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Raising your GH raises your TDS. When you say you added pure RO(0TDS) water did you adjust the GH/KH of this water or your entire tank?
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post #6 of 8 (permalink) Old 01-15-2014, 07:16 PM Thread Starter
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I retested both baking soda and equilibrium seperate, and they both raise TDS. I only treated the water change amount, not the whole entire tank. Well, I did another water change and brought it back down to 250 TDS. That's good for now, it has 5 KH and 5 GH, is that good enough for cherries? I'm also returning the equilibrium, it didn't mention raising TDS, that's my reason.
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post #7 of 8 (permalink) Old 01-15-2014, 08:02 PM
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You wont find a GH booster that wont raise TDS, some raise it more than others though, I have never used equilibrium so Im not sure about it.
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post #8 of 8 (permalink) Old 01-15-2014, 08:46 PM Thread Starter
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I learned it the hard way, so does baking soda. I'll just have to do with my RO/Tap mixture.
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