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11-12-2005, 10:43 AM
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#1 (permalink)
| | Astrea Snail
Join Date: Apr 2004 Location: central, IL,Illinois
Posts: 30
Karma: 1
 |  Can't get it up?
I can't get my PH any higher than 7.9 I've checked the calibration of my probe several times and it is ok. I purchased a redox meter and an ozone producer and have turned off the ozone because it is reading over 400mv without it.Its been as high as 450mv. (I thought that it would have been low and thus holding down my PH.) I do have a calcium reactor, but I run it at a slow drip and most of the time(90%) the CO2 is off because of the low PH. The PH can drop to 7.6 at night. Any ideas???
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90 gallon, 20 gallon sump,skimmer,chiller,ro/di unit,calcium reactor,2-250w HQI 10000K, 2-96w 7100k,SPS,LPS,leathers,aqua equlizer | 
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11-12-2005, 11:28 AM
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#2 (permalink)
| | Spanish Shawl Nudibranch
Join Date: Dec 2004 Location: Downriver, Michigan
Posts: 81
Karma: 9
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Try using a ph buffer.
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46 gallon bow front, 62lbs Fiji/Tonga live rock, 312 watts T-5 lighting, 75lbs sand. Seaclone 100.
Emerald Crab, Blue Leg hermits, Astrea Snails, Sand Sifting Star, Mini Brittles, 2 Ocellaris Clowns, 2 Blue-Green Chromis, 2 Yellowtail Damsels, 1 Blue Damsel, Sebae Anemone(getting huge).
Button Polyps, Starburst polyps, Sunburst polyps, Pink Polyps,Teal Polyps, Green Polyps, Galaxea, Green Goniopora, Red Shroom, Green/Blue Ricordea shrooms, Green Blastomussa Merletti. | |
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11-12-2005, 11:32 AM
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#3 (permalink)
| | Astrea Snail
Join Date: Apr 2004 Location: central, IL,Illinois
Posts: 30
Karma: 1
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I just did that and it did raise the PH to 7.9. I tested my DKH and it was only 6 before I added it. I thought that the calcium reactor would keep it up on its own. | |
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11-13-2005, 10:01 PM
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#4 (permalink)
| | Fire Shrimp
Join Date: Oct 2003 Location: Mid-west, Illinois
Posts: 343
Karma: 12
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Do you have any sand, or pieces of live rock in your tank _________ http://www.3reef.com/uploads/1scuba1.jpg && &&&&24 GAL Nano Cube with 30 lbs of sand,28 lbs of live rock, 2 clown fish and now 6 mushroom, and still learning. &&PADI diver riding a 93 Blue Goldwing&&Logo by Nautilus | |
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11-13-2005, 10:08 PM
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#5 (permalink)
| | 3reef Sponsor
Join Date: Jun 2005 Location: Brookfield, IL Age: 33
Posts: 334
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I know you said you checked the calibration on your probe, but do you have a different pH test kit that you could try to confirm your pH reading? _________ Your #1 Source for Fauna Marin, GHL/Profilux, ZEOvit & Hagen Products!
Specializing in Rare & Exotic Animals "Happy are those who dream dreams and are ready to pay the price to make them come true." -Leon J. Suenes | |
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11-13-2005, 10:55 PM
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#6 (permalink)
| | Sea Dragon
Join Date: Nov 2005 Location: Northern Virginia Age: 49
Posts: 501
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JLine,
You could also test the probe on something you know has a higher pH than 7.9. Either add a lot of baking soda to a quart of water and test it, or mix up 5-10 gallons of fresh sea water like you were going to make a water change.
Added bonus: since the new sea water is made up, you might as well perform the water change! _________ -- SAW39 45 gal modified hex. Started and cycled August 2005.
2 Serpent Stars, Ocelaris Clown, Yellow Tang, 3 Green Chromis damsels, Macrodactyla dorensis anemone, 1 giant Bristleworm, 1 small Banded Coral Shrimp.
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11-15-2005, 06:50 PM
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#7 (permalink)
| | Coral Banded Shrimp
Join Date: May 2005 Location: Atlanta, GA
Posts: 360
Karma: 62
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Have you tried Kent Marine Super Buffer? It worked great for me. I add a half dose each week when I do a water change and my PH stays in the 8.2 - 8.4 range. | |
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12-17-2005, 10:08 PM
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#8 (permalink)
| | Fire Worm
Join Date: Aug 2005
Posts: 170
Karma: 28
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Quote: |
Originally Posted by jline I just did that and it did raise the PH to 7.9. I tested my DKH and it was only 6 before I added it. I thought that the calcium reactor would keep it up on its own. | I would suggest slowly adding buffer to your tank and testing the ph after about an hour or so after adding it. It seems to me that your dKH is a little low as well. What are your calcium and magnesium levels?
Also, Vamp 75, asked you about having another type of pH test around. Good idea as this will help verify any off readings that you might get in the future.
Anne | |
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12-18-2005, 07:44 AM
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#9 (permalink)
| | Feather Duster
Join Date: Aug 2004 Location: Overland Park, Kansas
Posts: 202
Karma: 31
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Quote: |
Originally Posted by jline I just did that and it did raise the PH to 7.9. I tested my DKH and it was only 6 before I added it. I thought that the calcium reactor would keep it up on its own. | Actually, a calcium reactor could be the problem. Make sure you are testing the PH of the effluent as it comes out of the unit. If your CO2 is set to bubble too fast, it will drive down your PH. (The rector works by using CO2 to reduce the PH, which helps dissolve additional calcium from the aragonite media.)
I need to brush up on my Calcium Reactor history, but I believe a slightly low PH (a couple tenths, not a whole point) is normal when they are used. _________ -Mickey 175g Bowfront - 75g Refugium - 100g Sump - 3 Phoenix 14k 250W MH - AquaC EV240 Skimmer - 240lbs Haitian Live Rock - 4" DSB - Red Velvet Fairy Wrasse - Azure Damsel - Banggia Cardinal - Firefish Goby - Blackcap Basslet - Purple Tang - Powder Brown Tang - Regal Tang - Green Manderin - 2 Skunk Cleaner Shrimp - 2 Peppermint Shrimp - 2 Emerald Crabs - Rose BTA - Orange Linkia - Tuxedo Urchin - Spiney Urchin (hitchhiker) | |
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02-04-2006, 12:59 PM
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#10 (permalink)
| | Giant Squid
Join Date: Jan 2006 Location: Meriden, Connecticut Age: 44
Posts: 4,023
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Yeah, Kent's super buffer dkh is a very good product for increasing your ph from 7.9 to 8.2 | |
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