Raising PH - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 08-02-2011, 05:21 PM Thread Starter
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Raising PH

Hello!

My tap water has a PH of 7.4, I already found out how much baking soda I would need to raise the PH of one gallon of water to match the PH of my tank which is 8.2. My question is is there anything about raising the water I use for my water changes this way that can adversely affect my tank. If I do this will the ph of my tank raise even more after the water has been aerated by my filters and air stone?

Thanks!
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post #2 of 10 (permalink) Old 08-02-2011, 05:23 PM
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WHY are you raising your ph to 8.2? are you keeping rift lake cichlids?
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post #3 of 10 (permalink) Old 08-02-2011, 05:50 PM Thread Starter
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Nope. I have goldfish. My ph naturally raises to 8.2 in the tank after being circulated and aerated by the filters and airstone. I just wanted to make sure it wouldnt cause any wacky things to happen with the ph after I added it to the tank.
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post #4 of 10 (permalink) Old 08-02-2011, 07:13 PM
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Originally Posted by xjasminex View Post
Hello!

My tap water has a PH of 7.4, I already found out how much baking soda I would need to raise the PH of one gallon of water to match the PH of my tank which is 8.2. My question is is there anything about raising the water I use for my water changes this way that can adversely affect my tank. If I do this will the ph of my tank raise even more after the water has been aerated by my filters and air stone?

Thanks!
Hello x...

Unless you have city water problems and your water is acidic (under 7), which isn't likely, then your tap water is fine. Tropical fish are very tolerant of alkaline water and actually do best in water in the 8.0 to 8.5 pH range.

The great thing about most tropical fish is they're very adaptable as long as the pH remains constant. You can control the pH with chemicals, but it's risky at best, because you could make a mistake and the pH could spike in one direction or the other.

I haven't tested the pH in my tap water for several years and don't give it another thought. I just treat it for chlorine and chloramines and into the tank. I've never had a problem.

As always, just one, humble reporter's opinion.

B

"Fear not my child, just change the tank water."
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post #5 of 10 (permalink) Old 08-02-2011, 07:16 PM
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Nope. I have goldfish. My ph naturally raises to 8.2 in the tank after being circulated and aerated by the filters and airstone. I just wanted to make sure it wouldnt cause any wacky things to happen with the ph after I added it to the tank.
DO NOT raise your pH using baking soda if it is raising all on its own.

What is happening is simple. There is co2 in your tapwater, when you put it in your tank and degass it, it raises pH.

When you add baking soda, it is just going to end up raising it higher.

Don't screw with it and leave your fish be. I promise you will thank me later.

If you doubt it, you can try screwing around with pH for a while and report back with the results.

Again, don't touch it. There is no reason to. I promise.
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post #6 of 10 (permalink) Old 08-02-2011, 07:47 PM Thread Starter
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Ok thanks, that is what I was wondering, Its just when I do a water change I'm afraid its such a big jump in ph that it stresses my goldies out to much and was wonderin a way to try and up the ph with out using chemicals.

Thanks!
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post #7 of 10 (permalink) Old 08-02-2011, 07:51 PM
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It will be fine. Co2 related pH changes mean nothing.

You will do much more harm by adding baking soda.
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post #8 of 10 (permalink) Old 08-02-2011, 09:01 PM
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+1 for what OverStocked said!
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post #9 of 10 (permalink) Old 08-02-2011, 09:29 PM
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If you are really worried about the change in pH let the water sit in a bucket overnight before doing your water change. If the change in pH is due to CO2, letting it sit will allow it to de-gas. It also lets the chorine evaporate so you don't need to add dechlorinator. Now, if you have chloramines I don't think they evaporate as easily and you should still add a dechlorinator.
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post #10 of 10 (permalink) Old 08-02-2011, 09:39 PM
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Chloramines do not evaporate at all. Dechlorinator is so cheap it is silly not to use.
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