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20 g tall stocking question

This is a discussion on 20 g tall stocking question within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I also wanted some jungle val, supposedly someone was sending me some two weeks ago but i have not heard from them since... I've ...

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20 g tall stocking question
Old 04-30-2013, 10:56 AM   #21
 
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I also wanted some jungle val, supposedly someone was sending me some two weeks ago but i have not heard from them since...
I've mentioned water parameters in this thread, but you haven't told us what they are. Thinking here of GH (general hardness) and pH. Cardinal tetra were mentioned earlier, and they must have soft water. Vallisneria must have moderately hard water. It would help us help you if we knew the GH especially of your source water; you can get this from the municipal water people, likely on their website.
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Old 04-30-2013, 11:22 AM   #22
 
as far as Gh i do not have anything other than a test strip, it reads 150ppm. ammonia - 0 nitrite down to .75ppm (from 2 yesterday), nitrates are still pretty high as i have only done one water change since set up.
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Old 04-30-2013, 11:28 AM   #23
 
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Originally Posted by xfatdannx View Post
as far as Gh i do not have anything other than a test strip, it reads 150ppm. ammonia - 0 nitrite down to .75ppm (from 2 yesterday), nitrates are still pretty high as i have only done one water change since set up.
Assuming the 150 ppm for GH is reasonably accurate, that is fine. Aroound 8 dGH which is a tad high for soft water fish but not excessively so. IK keep my tanks at 5 dGH to 6 dGH [I have to raise the GH from near-zero in my tap water, solely for the plants]. Vallisneria might be OK with this; it also needs good light.

You can confirm the GH with the municipal water folks. This is public information. Only takes a minute to check their website.

Get the nitrites to zero, nitrates will lower too.
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Old 04-30-2013, 06:41 PM   #24
 
does this make sense to you?

Hardness (total) as CaCO3 11(average) 7-14(range) grains per gallon(Units)
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Old 04-30-2013, 07:21 PM   #25
 
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Originally Posted by xfatdannx View Post
does this make sense to you?

Hardness (total) as CaCO3 11(average) 7-14(range) grains per gallon(Units)
Yes, we can convert this to our more standard units. 1 dGH = 1.042645169 grains per gallon, so the average of 11 gpg would be 11.5 dGH, which is at the high end of what we can term medium hard. This would equate to 205 ppm, which is a bit higher than your previous 150 ppm. But their 11 is "average" so your tap water test could have been at the lower end of the range, either on that day or due to your particular water source. Some municipalities obtain water from more than one source, so GH and pH can vary.
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