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Old 05-16-2011, 06:51 PM   #11
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Old 05-16-2011, 06:55 PM   #12
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One last question. What salt mix are you using?
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Old 05-16-2011, 07:21 PM   #13
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Old 05-16-2011, 08:33 PM   #14
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If you think your pH is dropping there are a few things you can try. First, point your powerhead more towards the surface and get a nice rippling affect going. That will promote better gas exchange. Another thing that can cause low pH is too much co2 in the air in your house. If possible, crack open a window close to the tank and let some fresh outside air in. You can test if you have too much co2 in your house by first testing the pH of your water in the house. Then take a sample of your water outside and let it sit out there for a while with an airstone in it bubbling fresh outside air and then test it. If the pH is higher outside you have high co2 inside the house.

Any buffer that claims to keep your pH at a constant level (like 8.3) contains a high amount of borate. Too much borate can affect the reading on some pH test kits. If your pH is anywhere between 7.8 and 8.3 your fine and it's nothing to worry about. Don't get too caught up in trying to keep it at a certain level. It will always be lower in the morning after your lights were off all night and rise thru the day once your lights are on.

If you KNOW it's low, take 2 1/4 cups of Arm & Hammer baking soda, put it on a cookie tray and bake it in the over for 1 hour. After it cools, mix that in a 1 gal jug with RO water. Dosing this solution will raise your pH, but it will also raise your alk so keep on eye on your alk.
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Old 05-16-2011, 08:55 PM   #15
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So it will always fluctuate a little bit?

Thanks for all of the info guys. I feel like I have a little bit of info now on pH, compared to when I first started this thread I felt I knew nothing and it was a bit terrifying.
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Old 05-16-2011, 09:38 PM   #16
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You`ll be alright. Larry is the best when it comes to stuff like this. You can bet he knows what he is talking about.
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Old 05-17-2011, 04:45 PM   #17
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OK, today my tank water is 8.0 pH, 10 dKH.. so stable since yesterday

I tested my tub of RO/DI water. pH is less than 7.4.. it's pure yellow, and dKH is 0 (instantly turned orange). I reckon cuz this is pure water... DUH! :P

I will test my water after i mix it and let it mix and aerate for a day and warm it up to my tanks temperature.
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Old 05-17-2011, 06:18 PM   #18
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Quote:
Originally Posted by scottayy View Post
I will test my water after i mix it and let it mix and aerate for a day and warm it up to my tanks temperature.
Test it before you add it to the tank. Like to know what it is before you add it to the tank.
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Old 05-19-2011, 11:49 PM   #19
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The pH was about 8.0
I didn't test the alkalinity though (couldn't find my test kit at the time, though I found it now).

That's interesting. I had a pH crash earlier and I used the buffer to get it back up to 8.0 in the main tank.

Does pH crash over time?

I added enough marine buffer to the mix I made to cover only what was in my tub. Then I did the PWC. I did this in *case* it crashes over time and because it's safe in overuse.

I might just dose the marine buffer in the tub when I do PWC's.. only enough to cover the amount of water in there. Just to be on the safe side?

Will test my display tank's parameters here in a couple of hours.
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Old 05-20-2011, 02:07 AM   #20
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OK.. four hours after PWC..

Ammonia, nitrites, nitrates - all 0. How am I getting 0 nitrates? I have had 0 nitrates for a couple of weeks now.. and confirmed by the LFS.. so I'm not doing my test wrong. It's not that I mind it, I would just like to know why.

pH - 8.2
dKH - 9 (though 9 makes the color change, 10 makes the color change bright.. so 9.5?)

salinity is at 1.024

So my water conditions look pretty pristine!! I'm excited.. I was afraid I wouldn't be able to pick up my pair of black clowns this saturday.

Another question is, how do I control alkalinity if it is too high or low?
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