Reconstituting r/o water - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 10-27-2007, 04:06 AM Thread Starter
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Question Reconstituting r/o water

Just filled my fish tank with straight r/o water. I have AP's substrate on the bottom.
Water perimeters are:
ph 6.6
Kh 3 degrees
Gh 6 degrees
TDS4.87

My question is do I still need to add Equilibrium? On the label it mentions a KH of 3-6 degrees. Aren't I already there? Plan on getting my plant package soon.

The last time I used Equilibrium per dosage for r/o water, with this substrate my water perimeters were:
ph 6.0
Kh 4.0
Gh 11.0
Thought my Gh was too high.
What should the Gh and Kh be for a planted tank?
The plant guru at the lfs doesn't use any reconstituing agent at all. Just buffers the r/o water with Seachem's Acid and Alkaline Buffer per the label.
Any help will be appreciated.
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post #2 of 8 (permalink) Old 10-27-2007, 04:14 AM
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Why are you using RO water in the first place?
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post #3 of 8 (permalink) Old 10-27-2007, 07:39 AM
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You don't need to add anything--unless Your plants tell you they need some Ca/Mg (Gh). Just ride it out for a bit and see how it goes---less is more.....

Quote:
Seachem's Acid and Alkaline Buffer per the label.
Leave those out. You don't need to "buffer" the pH/Kh. Just keep reading and learning. Your LFS Guru still has somethings to learn. Those buffers add a lot of TDS to the water---unnecessarily.


Low or no KH and low PH without a "crash"??
Low KH and pH crash
pH = 5.5, what now?


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post #4 of 8 (permalink) Old 10-27-2007, 12:19 PM
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I'm sitting here wondering why RO water would have any measurable KH and GH to start with.
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post #5 of 8 (permalink) Old 10-27-2007, 04:05 PM
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My RO water do not have KH and GH.... And I don't add any thing to the water, the RO water go straight into my aquarium.
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post #6 of 8 (permalink) Old 10-27-2007, 04:23 PM
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Unless from the last dose of Equillibrium + the new water added have reduced it to the amounts 3dKH/6dGH....? You have me confused as well

Those levels are fine for plants, when adding aim for a GH of 6~10dGH and you'll be fine. I would'nt add any alkaline buffers to the water just leave dKH @ 0.


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post #7 of 8 (permalink) Old 10-27-2007, 05:50 PM
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I use an RO/DI. I have to. My water is HORRID! Out of the tap is 3.0-3.5ppm of chloramines. No, I don't drink the water. It's a cheaper alternative to make water with the system than trying to add enough Prime to lock up that much chloramine.

I reconstitute my water using Equilibrium and baking soda. The baking soda to raise the PH to whatever I want 6.5 for the bettas, 7.0 for the rest of the tanks. I only use 1/4 of recommended Equilibrium when I make new water.

For what it's worth, I have been doing this for 2 years at my current residence and have had no problems. Bear in mind, this is just me and my setup.

I woke up one morning and realized my living room turned into a fish store!!! HELP!!!!
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post #8 of 8 (permalink) Old 10-27-2007, 06:22 PM Thread Starter
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The city water here is horrid. Ph of 8.8. High in chlorine(its recycled). Not good for my discus. When I listed the above specs, it was on the r/o water in the fish tank. I am sure the substrate is leeching minerals into the water to give those readings. Which is a good thing. So I will just go with what I have and not alter or add anything...............
thanks
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