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Old 12-21-2006, 02:24 PM   #1 (permalink)
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Default Garden Grove Water Quality

In going through old mail, I found a "water quality report" with levels for all sorts of things in the water, here are the ones I thought would be relevant:

(all are averages)
pH: 8.2
Nitrates: 31 ppm
total alkalinity (ppm as CaCO3): 184
total hardness (ppm as CaCO3): 316
Calcium: 97 ppm
Magnesium: 18 ppm
Potassium: 3.7 ppm
Boron: <0.1 ppm
Total Dissolved Solids: 487 ppm
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Old 12-21-2006, 08:52 PM   #2 (permalink)
 
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Woohoo 31ppm nitrates!!! Well at least you won't have to dose KNO3.
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Old 12-21-2006, 09:37 PM   #3 (permalink)
 
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Hi Cassie,

Just thought i share a link to the Garden Grove water quality report. =)
2006 Water Quality Report

I'm using tap water right now and it seems like my plants are not liking it. Since I started using tap water, i'm getting green spot alage =( and my rotala rundafolia doesn't look too healthy.

john
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Old 12-21-2006, 10:15 PM   #4 (permalink)
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John, those look to be the numbers Cassie posted.

How much are you adding for phosphates?

If you're doing EI and 31ppm is right, that's really putting about 15ppm in at water change. Add in 1-2ppm of phosphates with the water change, then 10-15ppm every other day after that.

Otherwise, I don't think there is any problem with your water...it's not too far off from mine
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Old 12-21-2006, 11:01 PM   #5 (permalink)
 
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Hi Mike,

I wasnt adding anything to the tap, just 5ml of iron a week. So is Phosphate the only thing that is needed with this water? I can get phosphate ( KH2PO4 ) from gregwatson but how do I get ppm from teaspoons? My math ability is limited =). thanks for your tip.

john
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Old 12-21-2006, 11:05 PM   #6 (permalink)
 
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Where are you in San Diego, Mike?
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Old 12-22-2006, 10:36 AM   #7 (permalink)
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John (songrako),
First...as a SoCal resident you get the SCAPE discount Just click the banner in my sig and register on the forum to find details. Your account will not be activated automatically...Carl or I have to approve it. So be patient

As for my recommendations...they are based on the Estimative Index. That depends on how much light you have, CO2 and other stuff. If Cassie is willing to share the thread, I'm good with that. Otherwise, I suggest you start a thread with your particulars.

John Wheeler, I'm in Santee near West Hills High.
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Old 12-22-2006, 03:23 PM   #8 (permalink)
 
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OK.

You have that much NO3 in your tap water? Not poaching a thread... just want to be clear on this point.
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Old 12-22-2006, 09:38 PM   #9 (permalink)
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John, feel free to "share" the thread, although you may get better responses if you make a new thread with a subject that reflects your question.

Wheeler, yes, we have that many Nitrates straigt from the tap. I don't dose them at all, just traces and a small amount of K
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Old 12-22-2006, 10:07 PM   #10 (permalink)
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Wheeler,
Yep...their water report says average of 31ppm.

So, Cassie...what's your next question?
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