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| General Reef Discussion In this forum we discuss issues related to keeping marine and reef aquariums in a friendly flame-free environment. |
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03-20-2008, 01:31 PM
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#1
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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alkalinity too high??
Cleaned (25%) tank on 3/14, parameters then were
ph 8.2
alk 11.9
ca 410
sg 1.023
temp 77
today is:
ph 8.2
alk 12.2
ca 430
sg 1.023
temp 77.2
any ideas why alkalinity is so high???
112g tank, 30g sump, skimmer, ro/di water only
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03-20-2008, 01:49 PM
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#2
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Just some guy, you know?
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 18,936
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How are you measuring that Salinity?
Do you add anything to your tank like "Reef builder", "Purple up", any kind of "Ph booster" or anything?
Whiskey
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Vagabond
Computers are the worlds most plentiful source of unique, and unimaginable problems.
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03-20-2008, 02:39 PM
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#3
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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I use a refractometer that I calibrate using ro/di water. I periodically add iodine and scrontium
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03-20-2008, 02:43 PM
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#4
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Just some guy, you know?
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 18,936
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Hmm,.. That Alk is pretty high, but not high enough that I would freak out,.. Is this a new tank?
Whiskey
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Vagabond
Computers are the worlds most plentiful source of unique, and unimaginable problems.
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03-20-2008, 02:46 PM
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#5
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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a little over a year old.
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03-20-2008, 02:47 PM
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#6
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Just some guy, you know?
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 18,936
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Quote:
Originally Posted by dachsienutt
a little over a year old.
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Has it always been that high? Is this a reef tank?
Whiskey
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Vagabond
Computers are the worlds most plentiful source of unique, and unimaginable problems.
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03-20-2008, 02:48 PM
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#7
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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i have posted previously(about 2-3 weeks ago) that my button zoas and green stars are no longer opening and my mushrooms do not inflate like they used to. do you think it is all related?
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03-20-2008, 02:50 PM
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#8
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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Quote:
Originally Posted by Wiskey
Has it always been that high? Is this a reef tank?
Whiskey
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According to my log book, the lowest on record is 9.3 dKH and the highest istoday at 12.2 dKH
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03-20-2008, 02:52 PM
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#9
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Just some guy, you know?
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 18,936
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Quote:
Originally Posted by dachsienutt
i have posted previously(about 2-3 weeks ago) that my button zoas and green stars are no longer opening and my mushrooms do not inflate like they used to. do you think it is all related?
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I would tend to say no,.. some people run there alk that high just on purpose, though other people have had issues letting it get up that high.
What does your new water (for a water change) mix up to on Alk?
Whiskey
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Vagabond
Computers are the worlds most plentiful source of unique, and unimaginable problems.
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03-20-2008, 02:52 PM
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#10
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The Muddy Mod
Join Date: Dec 2005
Location: Uxbridge, MA
Posts: 5,520
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IMO 12.2 is not high...I use 12.0 as target.
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Butch
***Factory Trained BMW Driver***
****Proud member of the PRG**** 
*President of Tri-State Reef Society*
"I'm King of the Sea People" - Cartman 
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03-20-2008, 02:55 PM
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#11
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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Quote:
Originally Posted by Wiskey
I would tend to say no,.. some people run there alk that high just on purpose, though other people have had issues letting it get up that high.
What does your new water (for a water change) mix up to on Alk?
Whiskey
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? Do you want me to test the ro/di water for alk?
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03-20-2008, 03:43 PM
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#12
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Shark
Join Date: Jan 2005
Location: Marlboro, Ma.
Posts: 1,326
Reviews: 1
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Quote:
Originally Posted by dachsienutt
? Do you want me to test the ro/di water for alk?
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No I think he means fresh made salt water before you add it to the tank.
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03-20-2008, 03:46 PM
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#13
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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i usually only test the sg and get the temp up before I add to tank.
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03-20-2008, 03:53 PM
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#14
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Just some guy, you know?
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 18,936
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Quote:
Originally Posted by dachsienutt
i usually only test the sg and get the temp up before I add to tank.
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Well,.. Next time you do a water change test it  We may find where your high alk is coming from.
Whiskey
__________________
Vagabond
Computers are the worlds most plentiful source of unique, and unimaginable problems.
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03-20-2008, 03:55 PM
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#15
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Little Fishy
Join Date: Mar 2007
Location: central USA
Posts: 160
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sure will. Thanks. Also, how often do I need to change the ro/di filters. I changed them about 6 months into tank, and now it's been six more months. Is that too often?
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