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Old 11-10-2008, 05:24 PM
RuGlu6 RuGlu6 is offline
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Default How to drop Alkalinity and keep it stable?

Hi guys,
My Alkalinity is 15, a bit too high. (30 drops with elos test to get water from clear to blue to yellow)
I have tiny calc reactor (Acro-Cal) and running 1 (one) Co2 bubble every 4-6 seconds in a bubble counter, can not make it any less then that with needle valve from J&L.
Increasing the flow through the reactor doesn’t seem to help with Alk drop, but only in Ph increase in the effluent.

Any ideas on how to drop Alkalinity and keep it there stable?
thx

Last edited by RuGlu6; 11-10-2008 at 05:26 PM.
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Old 11-10-2008, 05:45 PM
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what is the Ph reading in the effluent coming out of the reactor?
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50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor
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Old 11-10-2008, 07:57 PM
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Check your Ca level. If the Ca is also pretty high, just shut the reactor off until things drop back down to more appropriate levels. After that, you have to slow down that reactor to keep things in line.
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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

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Old 11-10-2008, 09:15 PM
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maybe you dont even need a reactor yet.
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Old 11-10-2008, 09:46 PM
RuGlu6 RuGlu6 is offline
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Thanks for replies people,
Sorry forgot to mention the obviously needed info.
Cal level is 420ppm
Ph main tank 8.3-8.4
Ph Reactor effluent 6.6 with one bubble every 4-6 seconds, can't make it anything less the that.
Reactor effluent is steady drip but fast enough to not to be able to count drops.
I just switched to Reefers Best salt maybe this will make it better...
I have few SPS and some LPS so there is a need at least for some Calcium.
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Old 11-10-2008, 09:56 PM
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Quote:
Originally Posted by RuGlu6 View Post
Thanks for replies people,
Sorry forgot to mention the obviously needed info.
Cal level is 420ppm
Ph main tank 8.3-8.4
Ph Reactor effluent 6.6 with one bubble every 4-6 seconds, can't make it anything less the that.
Reactor effluent is steady drip but fast enough to not to be able to count drops.
I just switched to Reefers Best salt maybe this will make it better...
I have few SPS and some LPS so there is a need at least for some Calcium.
pH seems high...This doesn't seem to jive with high Ca/Alk. I can't easily explain it, but I would also not worry about it.

Ca is high enough that if you shut down that reactor, you'll see the Alk fall...while the Ca will also fall but much more slowly. I still think that is what you need to do.
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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  
Old 11-10-2008, 10:00 PM
RuGlu6 RuGlu6 is offline
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Maybe my Elos Alk test is just junk?
J&L didn't have Alk salifert test in stock...
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Old 11-10-2008, 10:20 PM
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I've found the ELOS kit to be more difficult to use. (I hate counting drops...) But it does seem to give the same results as the Salifert - within the general accuracy of things.
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My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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Old 11-12-2008, 06:39 AM
RuGlu6 RuGlu6 is offline
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Just checked J&L's water with my elos alk kit and their water is in perfect 8.5 Dkh !
So my test is ok.
I guess regular small water changes will be my thing to do over next few weeks...
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Old 11-12-2008, 04:01 PM
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Just shut shut down the reactor until your alk drops. If your calcium drops too much you can add Calcium Chloride to raise the level. It's amazing your pumps haven't seized with that high of an Alk level.
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