Using Onyx in my 6g - buffering issue? - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 09-20-2005, 04:57 PM Thread Starter
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Question Using Onyx in my 6g - buffering issue?

I put this at the end of one my other threads but never got a reply so I figured it deserved a new post:

I've been reading more about Onyx Sand and I'm concerned that it will buffer the water. My GH is already 22 and KH is 12 out of the tap. Will this have ANY affect whatsoever on a 6g nanocube?

Also, should I put one of those "water softener" pillows into the filter? I use it on my non-planted tank and it lowered the GH to about 7. It's a bit closer to the what my types of fish would be used to in the wild. But maybe it ultimately doesn't matter either?
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post #2 of 10 (permalink) Old 09-20-2005, 05:53 PM
 
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As long as you perform routine water changes the buffering of the sand should be minimal. Also I have read that water softeners aren't the best idea. I don't think you will have a problem growing most plants in your water.
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post #3 of 10 (permalink) Old 09-21-2005, 06:04 AM
 
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maybe mix peat into the sand if it really bugs you. Personally . . . I prefer florabase!
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post #4 of 10 (permalink) Old 09-21-2005, 06:54 PM Thread Starter
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Quote:
Originally Posted by greenmiddlefinger
maybe mix peat into the sand if it really bugs you. Personally . . . I prefer florabase!
I'm going to ask a very elementary question but where do I get peat? Is that something I can get at a local garden shop?
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post #5 of 10 (permalink) Old 09-21-2005, 11:33 PM
 
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yeah, local gardening shop is good
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post #6 of 10 (permalink) Old 09-22-2005, 01:43 AM
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sphagum peat moss... several brands to choose from, just make sure it's 100% pure peat moss. *no additives*, ie. fungicides, pesticides, fertilizers, etc. Peat with extra stuff in it is rare, most companies sell the stuff straight, but occasionally there's a product with added miracle gro, etc. however, with your kh and gh being what they are, i doubt that the onyx will affect anything at all. steer clear of water softening pillows, etc. they just exchange Ca+ for Na+ or K+, which leads to water that's even more out of whack than before you changed it. Peat exchanges H+ ions for the Ca+, which the plants and fish don't particularly care about, as long as your pH doesn't swing too wildly as a result (which it shouldn't because... oh, nevermind.)

Anyway... long story short:
1. Pure peat.
2. No water softener.
3. Yes to Onyx, it will barely affect your gh and kh.
4. If softening is essential to you, see #1.

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post #7 of 10 (permalink) Old 09-22-2005, 04:26 AM
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does buffering affect the pH as well? I always wondered that. I have Onyx sand in my 40G that I am getting ready to use for my plant tank (not yet). I have Malaysian Driftwood in my 10G but no substrate. the pH is around 6.2 or so.

-AoiGSR
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post #8 of 10 (permalink) Old 09-22-2005, 04:45 PM Thread Starter
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Quote:
Originally Posted by AoiGSR
does buffering affect the pH as well? I always wondered that. I have Onyx sand in my 40G that I am getting ready to use for my plant tank (not yet). I have Malaysian Driftwood in my 10G but no substrate. the pH is around 6.2 or so.

-AoiGSR
How do you like the gray color of the Onyx Sand?? I have yet to see it in a plant tank (in person) so I'm not sure I'll like it long-term.
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post #9 of 10 (permalink) Old 09-22-2005, 11:01 PM
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since I have no plants in there now, hard to tell . I have just water and the sand in there. I like the color. I think it's going to look good bringing out the fish color and the plants as well. We'll see. I haven't even started my Aquajournal or my plans yet I feel like I am never going to get fish

-AoiGSR
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post #10 of 10 (permalink) Old 09-23-2005, 02:44 AM
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I'm using it in a 10 gallon that I've started... The buffering is pretty minimal. It supposedly has a 0.1-0.5 effect on your water's PH value.
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