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#1
02-22-2008, 03:45 AM
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You could always see if a fellow Reefer in your area with a ph meter can stop by and do a quick test... just make sure it has been calibrated... just a thought...
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72g Bowfront Drilled,Lighting,2x250 10,000k MH,2 actinic T5,2/6" fans,2MJ with 1600gph convertions kits,Bullet 2 style skimmer with Mak 4,29g sump/Refugium,96W power compacts in sump, Velocity T4 Titanium "return",Life Guard 300 Fluidize bed filter,1"sand bed, 29g auto top off, 140lb LR,SPS,LPS,Softies,Zoos,2Percula Clowns, 2yellow tail Damsels,1yellow tang,2cleaner shrimp, 1six line Wrass,2 Bengaii Cardinal,1lawnmower Blenny,1sand sifting star,1TigerTailCucumber, snails,hermit crabs,Macros. 
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#2
02-22-2008, 04:31 AM
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Buy a pH meter. It'll pay for itself with use anyway. Get some calibration solution when you order it and calibrated every couple months. It's just easier, quicker and probably more accurate.
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#3
02-22-2008, 04:46 AM
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You know...I ran my first tank for twelve years and never really measured the pH. I don't think one should attempt to change the pH anyway. Especially NOT if you are not 100% dead accurate with pH measuring. Besides, to get a truly accurate reading of what your tank is doing you would need to measure ever hour for a 24hr period because there is a daily cycle.
So..go ahead and measure pH. It's fun. But don't try to change it! Control your Alkalinity (and Ca), and the let the pH do what it does. (Hypocritical advice as I am currently attempting to control my daily pH swing using my Kalk reactor...but I think that is different...)
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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#4
02-22-2008, 05:12 AM
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^^^^ I second what untamed said.
One exception, you DO want to measure pH of a reactor's effluent, and forget trying to use test kits for that. You need to know the difference between 6.6 and 6.7 and 6.8 and you really need a meter for that sort of thing. 6 years ago I tried dialing in a reactor using pH test kits. That lasted about 3 weeks. Bought a meter and never looked back.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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#5
02-22-2008, 02:27 PM
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I'm not looking at controlling PH. I'm trying to determine which product to use to raise alkalinity. Some, such as baking soda, lower PH while many comercial products raise it. I was trying to determine whether a product that raised PH or lowered it would be beter to use.
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#6
02-22-2008, 03:56 PM
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Quote:
Here's the article: http://www.advancedaquarist.com/issues/may2002/chem.htm
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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#7
02-22-2008, 05:13 PM
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Thanks, Untamed. The article you posted explains why most additives increase PH while baking soda lowers it. I was using the calculator at http://home.comcast.net/~jdieck1/chemcalc.html to find a product to increase alkalinity for my tank based on the effect on PH and where my PH is.
This whole post started because, without knowing my PH, I wasn't sure whether to use baking soda or a comercial product to increase alkalinity (or maybe both?)
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