ph question

keebler

Member
A good aquarists asks, "Why is my pH low?", not "How do I raise my pH?" What I mean is, don't treat the symptoms, treat the problem. Figure out why your pH isn't where it needs to be. You can start with your alkalinity and calcium. What are they? Do not use marine buffer, all that marine buffer does is rapidly increase your alkalinity which causes a temporarily higher pH. When the pH goes back to normal, it happens rapidly causing a pH swing and harming your livestock. My guess is that the salt you are using isn't good enough and that you should switch salt brands and do a series of water changes or a complete water change. But don't take my word for it, wait and see some more responses.
 

bang guy

Moderator
Originally Posted by pnkflydlvr
http:///forum/post/2733324
mine is low... how do you raise it? i'm using ro water with instant ocean salt.
What do you consider low? What time(s) of day are you taking readings?
I agree with not adding Carbonate just to raise PH. Try to figure out WHY it's low and then fix the problem. If your alkalinity isn't low and you add carbonate you can cause big problems.
If you just add the buffer then the problem will still be there and you'll have to start over next week when the PH drops again.
 

keebler

Member
Good point Bang, I forgot about fluctuations in pH during night and day. I run a fuge light at night to keep my pH more stable, but what he means when he asks when did you test it is that when the light goes off, the co2 increases which causes the pH to change.
 

keebler

Member
Good point Bang, I forgot about fluctuations in pH during night and day. I run a fuge light at night to keep my pH more stable, but what he means when he asks when did you test it is that when the light goes off, the co2 increases which causes the pH to change.
 

pnkflydlvr

Member
thanks for the info.

i usually take my readings in the afternoon. i got back from vacation late last night, so i hadn't checked it in over a week. as of today it was at 7.8 vs 8.2 last week. btw, the tank is relatively new and i only have lr and ls in it so far.
 
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