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 chronically low PH in all my systems :(

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shutterfish



Posts: 180
Join date: 2011-07-15
Location: Corvallis

PostSubject: chronically low PH in all my systems :(   Sun Dec 25, 2011 8:50 am

So how many of you deal with chronically low PH in your systems? I do not often check PH but I am setting up a 75 gallon tank and knew my 46 was always around 7.8/7.9ish so I put 80 lbs of aragonite sand into my 75 gallon tank, let it run for 6 weeks (with 125 pounds of live rock) and the PH is about 7.9.

I have never really experimented with buffers and boosters. I think I need to do a mix of raising alkalinity and PH- correct?

Whats the best way to do this? Will I have to dose my tanks constantly to get the PH up and stay up? Everything in my tanks look great but I assume there is a long term negative effect from low ph... or maybe a lot of people run low and its ok?
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badxgillen



Posts: 1873
Join date: 2011-07-13
Location: Corvallis Oregon

PostSubject: Re: chronically low PH in all my systems :(   Sun Dec 25, 2011 9:44 am

now that you mention it i havent checked many of my tanks ph lately just my main tank and my rooms tank wich one is stable at about 8.2-8.4 and then my main tank is always running low.but i do believe my main tank is one that i expeiment with ,wich i know i shouldnt,and therefore i tend to slack on the water changes to have a controled perspective on what i am doing.i suppose i should check them after all this holiday crap.
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badxgillen



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PostSubject: Re: chronically low PH in all my systems :(   Wed Dec 28, 2011 9:14 am

so a couple more of my systems have a lower PH than i would like and am not to sure at the moment as of why but i did grab a product that a couple of friends recomended for buffering a reef tanks PH.
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badxgillen



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PostSubject: Re: chronically low PH in all my systems :(   Mon Jan 02, 2012 10:15 pm

so before i dose all the systems that have lower than optimal PH with this product i was wondering if anyone has had some good luck with baking soda?i have used it a long time ago for a fresh water tank but never with sensitive inverts such as corals. i have read about other peoples using it succesfully but i was hoping that someone might reasure me a little more so i can get the balls to just try it out.
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mvpaquatics



Posts: 202
Join date: 2011-09-14
Age: 29
Location: Portland

PostSubject: Re: chronically low PH in all my systems :(   Tue Jan 03, 2012 3:10 am

Yes. Baked baking soda (sodium carbonate) The baking removes water and co2. This will raise the ph when added. Non baked baking soda (sodium bicarconate) contains the co2 still with slightly lower temporaily until co2 dissapates.

I use a combo of both. Usually 75% nonbaked to 25% baked per dose. Being that i have to dose so much baked baking soda would raise my ph too much. So i knock is back down with regular.

Here is a link. It is a go to in the hobby. Print it. Know it. Spread the word. And stock up on prestone drivewayheat now (calcum part) cuz you cant get it in summer

http://reefkeeping.com/issues/2006-02/rhf/index.php
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badxgillen



Posts: 1873
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PostSubject: Re: chronically low PH in all my systems :(   Tue Jan 03, 2012 8:59 am

thanks a bunch Very Happy i certainly will be grabing some prestone once i get this figured out.now to test a tank with the proper dosage.
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theRedSkull



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Join date: 2011-07-14
Age: 32
Location: Corvallis, OR

PostSubject: Re: chronically low PH in all my systems :(   Fri Jan 06, 2012 4:59 pm

i got several bottles of reef buffer i got through forgotten means, does that have anything to do with this?
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badxgillen



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PostSubject: Re: chronically low PH in all my systems :(   Fri Jan 06, 2012 5:57 pm

i dont know does it? Rolling Eyes so i ended up using the seachems Marine Buffer since i had already purchased it and it has some pretty crazy claims.
in a day it has already started to raise the PH but this can take any where from a few days to a couple weeks depending on the tank.so far so good.
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badxgillen



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PostSubject: Re: chronically low PH in all my systems :(   Fri Jan 13, 2012 10:29 pm

so i got the PH up to 8.1 in a reasonably quick rate.this stuff works pretty well.now i will have to see how long it takes for the PH to lower again but the product claims it should become less reliant on the doses once the PH has reached the 8.3 mark.
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shutterfish



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PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 8:10 am

So I realized I have been testing my systems in the morning when PH is lowest. It is probably 7.8 or 7.9 in the mornings (hard to tell exactly). But check this out- in the evening after a day of light my ph is about 8.1



I tested my calcium and magnesium and both were great. I checked my KH and it was just a little low... So I assume adding a buffer to get my KH up a little wold potentially shift my swing to about 7.9/8.0 to 8.1/8.2?

Is that an acceptable swing? I have growth in my tank but it isnt amazing or anything... except for my hydnophora... holy cow that thing grows fast...
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badxgillen



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PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 8:49 am

i have talked to several other people in regards to this and a flux of .3 doesnt seem to be uncommon.the funny thing is a few of the people who were not having any PH problems tried testing there PH in the morningafter i had mentioned this to them and sure enough a couple of them had low PH in the morning and they never knew it.although this isnt always the case it seems that this isnt somthing to worry about too much if your KH is up there.
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mvpaquatics



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PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 9:05 am

My view is. 7.8 is too low and 8.4 is too high. Anything in between is fine. 8.2 being optimum, but consistancy is the main thing. Dont let it yoyo around. A .3 swing is normal. Nothing more
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shutterfish



Posts: 180
Join date: 2011-07-15
Location: Corvallis

PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 9:15 am

So I will use my reef builder buffer to get the low end of my PH up a bit and I will see how it stabilizes and report back here in a couple weeks.

Mike does your PH swing? And is the only other way to avoid this to have a lighted refugium during the nighttime hours?

What is the ocean's PH shift at night?
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shutterfish



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PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 9:39 am

i just checked my newly set up 75 (3 months old) and this morning it has a PH of 8.1. Sweeeeet. I hadnt been testing morning PH in that one.
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mvpaquatics



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PostSubject: Re: chronically low PH in all my systems :(   Sat Jan 28, 2012 10:01 am

shutterfish wrote:
So I will use my reef builder buffer to get the low end of my PH up a bit and I will see how it stabilizes and report back here in a couple weeks.

Mike does your PH swing? And is the only other way to avoid this to have a lighted refugium during the nighttime hours?

What is the ocean's PH shift at night?

Yes mine swings...I have a LARGE amount of bioload and no sandbed...I have to dose like crazy, even when I had my calcium reactor on, to keep the buffer system up.

Alkalinity IS your buffer system. A "buffered" system (one with a proper amount of alkalinity), with have the best resistance to pH change.The buffers in the aquarium is the carbonic acid-bicarbonate-carbonate reactions.

No, in our terms the pH in the ocean doesnt shift...that is what we are trying to accomplish and replicate. Maybe is some finite local areas there may be some local pH shifts but for ours senses no.
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chronically low PH in all my systems :(

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