Reply With QuoteI'd imagine your fish would be dead by now....
Just brought a Ph pen. went around testing all my tanks.
Got a shock when I found out that my 6x2x2 is at ph4 (with soleniod CO2). Test water straight from the tap; ph 7.8 , test my other 1.5ft shimp tank; ph 7. So the ph pen is working.
Is there any long-term effect of low ph on plants ?
Danny Chng
I'd imagine your fish would be dead by now....
No problem at all with the fishes.All fat and healthy.
Danny Chng
No matter how much i think about it I can't think of any way your Ph could get that low, unless a fish happened to vomit at your test pen(that's all I can think of, really!) I'm going to assume you don't have a test kit, so... try dropping an eggshell in the water, if it reacts violently(bubbling) then it's probably very acidic. And leave the shell there. It'll increase the Ph of the water.
I suggest you go and calibrate that pH test pen. The readings could be out.
I've been pumping lots of CO2 in an ADA soil tank but never hit that low!
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The lowest I got for an ADA substrate with co2 is ph5.1.
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I have been pumping co2 to get rid of some bba. Its a new ph pen, other tanks shows normal reading, so does the tap water.
Just do a series of new test,
1.5ft shrimp tank : ph 6.8
Old tap water : ph 7
New tap water : ph 8.
6ft planted : ph 4.
Danny Chng
Seriously danny, eggshells or calcium tablets. And fish can survive in that environment. They produce extra mucus over their scales. Thing is it stresses them out. So you can
1. feel a fish, is it more slimy than the ones in the other tanks?
2. eggshells. Seriously.
Check your KH. If its less than 1 or close to or zero, the pH value isn't of much use since you need special probes for such water. We measure pH/KH for CO2. It needs both to read the CO2 level...not just one reading. Another issue is the peat effect from ADA Aquasoil. It lowers both the KH and GH. You'll need to work on it.
Regards
Peter Gwee
furry plant grower
Danny,
Stray current, or electrical leaks can affect the reading of your pH pen. When taking reading for this tank, turn off all electrical appliances including filter, fan, heater, light and any others like UV, etc....
If you find a similar reading to your current pH, then check KH, your pen is ok.
If reading changes then you might have an electrical leak somewhere.
To isolate the culprit, turn on appliances one by one, taking a reading after you have turned on each one. The one that causes a change in reading is leaking and should be replaced as electrical leaks and water don't mix.
Warm regards,
Lawrence Lee
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New pH pens should still be calibrated, cause you don't know how long it's been sitting on the shelves. I bought one (Ec-something) recently and it came with just enough pH 7.0 solution to do the initial calibration.
How do you know that your tap water at 7.8pH is correct? AQ members have reported Sg tap water as high as 9pH.
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Throw in some coral sand that I have. Test again after 1 day, ph = 4.4.
Will get a KH test kit soon.
Just recalibrated the ph pen, it is accurate. Show ph 7 when dipped into the buffer solution.
So far the fishes are ok, just that the cory stop laying eggs.
And thanks for all the reply but my main question remains unanswered, will it have any long-term adverse effect on the plants ? cause they are still growing healthy.
Danny Chng
No issues except that you cannot use the pH/KH method to determine the CO2 level. Your pH is subjected to the pH lowering ability of the peat in aquasoil. (Not from CO2 entirely...plants want the CO2, not the peat nor pH.)
Regards
Peter Gwee
Regular~ly online @ office hr
I hv some fine white coral sand. If U need some, pm me. Heard a bro said they hv some effect on PH.Wa, your cory "pregnant"? Not easy man.
Thanks for your offer, I have a 10kg bag of coral sand around.Originally Posted by plumboy21
I hv some fine white coral sand. If U need some, pm me. Heard a bro said they hv some effect on PH.
Danny Chng
Put in a bag of coral chips on Sat, just brought a kh test kit; Aqumedi. My kh is about 2, the water turns yellow after 2 drops of the reagent. test my ph, its now at 6. But if according to the ph/kh chart, my co2 will be at 60ppm. My fish is behaving normal, none grasping at the surface.
My explantation ?
Danny Chng
Is there a way to check your oxygen content? High CO2 doesn't have to mean low oxygen if I'm not wrong...
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