Remineralizing RO/DI - The Planted Tank Forum
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post #1 of 5 (permalink) Old 08-27-2019, 02:00 PM Thread Starter
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Remineralizing RO/DI

With the chlorine, chloramine and high tds in our water I just want to start with a clean slate rather than trying to treat tap water.
Before adding ferts, what is the best way to remineralize to get me back to a good baseline?
I'll be making batches of 50 gallons at a time so would like to mix right in my storage tanks.

TIA!

-Dennis
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post #2 of 5 (permalink) Old 08-27-2019, 02:16 PM
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Originally Posted by d2creative View Post
With the chlorine, chloramine and high tds in our water I just want to start with a clean slate rather than trying to treat tap water.
Before adding ferts, what is the best way to remineralize to get me back to a good baseline?
I'll be making batches of 50 gallons at a time so would like to mix right in my storage tanks.

TIA!
A lot of the answers you will receive will be personal preference. There are many remineralizers on the market and many ways to achieve your goals. DIY salt mix like @somewhatshocked has posted about in his journals. Equilibrium (sometimes met with opposition), Gh/kh boosters, salty shrimp etc. Really I suppose this depends on what your ultimate aim for parameters are in the end. Bicarb soda and dry salt mix may be the cheapest and most controlled method available.
Definitely read some of the more experienced planted tankers journals with custom ro/di setups.
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post #3 of 5 (permalink) Old 08-27-2019, 02:39 PM
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CaSO4 For Ca / gH - 20-30ppm
MgSO4 for Mg / gH - 5-10ppm
KHCO3 or K2CO3 for kH - 0.5-1.0 degrees.

https://rotalabutterfly.com/nutrient-calculator.php - punch in your 50 gallons, and set range for each compound and it will tell you how much is needed.
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post #4 of 5 (permalink) Old 08-27-2019, 02:58 PM Thread Starter
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CaSO4 For Ca / gH - 20-30ppm
MgSO4 for Mg / gH - 5-10ppm
KHCO3 or K2CO3 for kH - 0.5-1.0 degrees.

https://rotalabutterfly.com/nutrient-calculator.php - punch in your 50 gallons, and set range for each compound and it will tell you how much is needed.
Thank you. I think this is probably what I was imagining... some kind of dry mix.
Would be nice if someone offered a big 5g bucket of dry mix, with all needed ingredients, like you see with Saltwater mix. I'd pay a little more for that vs having to source the individual elements.

Bump: Oh and the choice between khco3 and k2co3... what do I need to base my decision on for that?

-Dennis
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post #5 of 5 (permalink) Old 08-27-2019, 03:05 PM
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Thank you. I think this is probably what I was imagining... some kind of dry mix.
Would be nice if someone offered a big 5g bucket of dry mix, with all needed ingredients, like you see with Saltwater mix. I'd pay a little more for that vs having to source the individual elements.

Bump: Oh and the choice between khco3 and k2co3... what do I need to base my decision on for that?
GLA has everything you need. Easy one-stop shop.

Grab a 50 gram scale with calibration weight accurate up to 0.001 grams for $20 off amazon and you're all set.

Whatever is available between KHCO3 and K2CO3 is what you use.
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