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Results 11 to 16 of 16
  1. #11

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    1 Not allowed!
    Quote Originally Posted by Slaphppy7 View Post
    Just depends on what is in the water, organics and inorganics.

    I agree with kaybee, I don't understand how an "ideal" TDS level for any given tank could be determined, either.
    No way a TDS reading is very useful without more testing information. Seems to me you also need to know your GH and KH at a minimum. I just got a new RODI unit and my TDS meter monitors it's performance fine, but if I feed my plants and throw some peat in the filter the tank TDS is going to move. It doesn't mean my water just got harder, or less optimal.

  2. #12

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    1 Not allowed!
    Quote Originally Posted by angelcraze2 View Post
    Have you tried testing the pH after letting tap water sit for 24 hours? Is 8.4 the pH in your tanks or tap water?

    I test my tanks water 24 hours after every water change and it always hovers around 8.2-8.4. My tap pH is about 8.4-8.6. I figured I had hard water from the amount of build up I have to scrape off my tanks and every source online says our water is hard. I do water changes (50%) twice a week, so I would be very surprised to see signs of old tank syndrome.

    Now I am curious about the freakish amounts of build up I get. Since my city is still changing over water supplies it will be interesting to see how it will change my water chemistry.
    A single frog sparked an interest, the pursuit of knowledge fueled my passion.
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  3. #13

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    0 Not allowed!
    It would be interesting...
    I guess what is responsible for the build up would be what your TDS is primarily made up of? I'm still learning about that. But I think calcium is mostly resposible for white buildup, is that what you are seeing?
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  4. #14

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    1 Not allowed!
    I would assume calcium because we have a ton of limestone and the town I live in is sitting on top of a massive primarily limestone cave system.
    A single frog sparked an interest, the pursuit of knowledge fueled my passion.
    1g: Home of the Homicidal Guppy
    5g: Single Female Koi Betta
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  5. #15

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    0 Not allowed!
    Quote Originally Posted by crazydragonlady View Post
    I would assume calcium because we have a ton of limestone and the town I live in is sitting on top of a massive primarily limestone cave system.
    White buildup is almost always calcium. Many of us in the Midwest have a lot of calcium in our water. I didn't need an API hardness test to tell me I live across the highway from a 300ft deep limestone quarry.

  6. #16

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    1 Not allowed!
    Quote Originally Posted by OnTheFly View Post
    White buildup is almost always calcium. Many of us in the Midwest have a lot of calcium in our water. I didn't need an API hardness test to tell me I live across the highway from a 300ft deep limestone quarry.
    Pretty much why I assumed I had really hard water. Right outside of town is the entrance to the largest gallium mine in the state.
    A single frog sparked an interest, the pursuit of knowledge fueled my passion.
    1g: Home of the Homicidal Guppy
    5g: Single Female Koi Betta
    10g: ADF, Guppies and Otos
    29g: Journal

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