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#1
03-01-2016, 05:25 PM
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Best way to raise ph? Kalk?
I have a 4 years old mixed reef 90 gallon with 10 gallon sump. My tank is pretty full and I have started to have ph swings now. I am in the process of setting up a calcium reactor but have been dosing for a couple of years now. My ph is going down to 7.7 at night now so I know I need to do something about it. Is kalk the best way for the ph swings? Would using a doser at night and dosing once an hour be enough to stop the swings? Or would it need to be dripping constantly to keep it stable? I do have an extra aqua lifter so wondering if that would work.
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#2
03-01-2016, 05:28 PM
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If everything looks happy I would leave it alone mine drops to 7.8 every night with no issue.
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#3
03-01-2016, 05:41 PM
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Quote:
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#4
03-02-2016, 08:47 AM
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Kalkwasser is one of many ways. Have a read and decide which one(s) will work best for you. I personally had my best success by drilling a large hole in the side of our house. But that may not be possible for other people. Low pH: Causes and Cures by Randy Holmes-Farley http://www.reefkeeping.com/issues/2004-09/rhf/
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour
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#6
03-06-2016, 06:41 PM
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if ph is swinging a lot it is most likely because alkalinity is not stable or at ideal levels. although it does fluctuate at night
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150 gallon reef mostly softies/lps. 50 gal sump with bubble magnus skimmer/ Led fuge light/refugium/ 1200 return and tunze powerheads. Dual pharoah main tank led.4 pump dosser. 550 gallon stingray tank water drip system 150 bowfront. 75 turtle tank, many others
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#7
03-07-2016, 02:25 PM
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Quote:
A few months ago I was having weird results testing for parameters. I updated my test kits but my results were duplicated so I was fairly confident they were accurate. As it turns out my refractometer reading had drifted. The 1.026 SG reading was actually 1.030. Naturally this threw off my other readings too. When I set up my Apex the pH probe was also out of calibration by fair bit. It was in a box for several years before I installed it so I still don't quite trust it. If your test kits are old and/or your probe hasn't been calibrated in a while, it might be a good idea to make sure they are reading accurately before making any adjustments.
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_________________________________________ 20 year old Hagen 100g 6' mixed reef. 36g sump with multiple broken Waveline products removed. Lights T5-LED combo. 1 Coral Beauty, 1 Flame, 1 Blue Tang, 5 Green Chromis, 2 Pajama Cardinals, Asst'd hermits & snails. 2 large boxes of broken expensive aquarium crap. 1 x VERY understanding wife.
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#8
03-07-2016, 05:12 PM
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I do have a ph probe and refractor. Everything has been calibrated recently and all my test kits are new. I had to use chemi clean a few weeks ago and had my tank with air stones for a few days and I didn't notice any increase in the ph so I am convinced it is high C02 in house. I have left the window open over night to see if it would increase the ph but it also didn't help. I have now added kalk to my ato water which seems to be working. When it dumps in it does raise the ph by 0.2 but in Randy's article it says that is acceptable. My ph now doesn't go below 7.8 and the highest it goes is about 8.2. I am guessing if I have more evaporation in warmer months though it may go up.
I am still not sure the kalk will keep it high enough as Mindy said if I get the calcium reactor working though. I have a ph controller but I wondering if it will shut off the C0s too much at night too keep my levels stable.
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