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06/13/2012, 06:51 AM
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#1 |
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Registered Member
Join Date: Aug 2010
Posts: 188
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Alkalinity issues... Am i doing it wrong?
Hello,
I have a 2 year old 28g and being very successful so far, but I've been worried about my alkalinity... For quite a time I've been having my kH levels never to get over 7-8 and sometimes it gets down to 6. My calcium levels are always at 400-420 and mag is about 1200. Been dosing Tropic Marin bio-calcium and bio-magnesium. My questions are: is my level of kH too low? am I in a risk of some trouble? Should I do something to rise it up? Thank you!
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JBJ 28g nano-cube LED. Lighting: 25x3w 14k daylight. Tunze DOC 9002 skimmer. Vortech mp10. 30 lbs live rock. 4" oolite DSB. |
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06/13/2012, 07:09 AM
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#2 |
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Registered Member
Join Date: Apr 2008
Location: North Palm Beach, FL
Posts: 1,611
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http://reefkeeping.com/issues/2006-06/rhf/index.php
http://reefkeeping.com/issues/2002-0...ture/index.php http://reefkeeping.com/issues/2006-02/rhf/index.php
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75g SPS Reef, 40g Sump w/14g DSB fuge, BM NAC6, MP40W x2, Mag12, DIY LED Fixture, Apex PBMAS VP 2010-11 Current Tank Info: It has water in it |
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06/13/2012, 08:25 AM
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#3 | |
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Registered Member
Join Date: Aug 2010
Posts: 188
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Quote:
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JBJ 28g nano-cube LED. Lighting: 25x3w 14k daylight. Tunze DOC 9002 skimmer. Vortech mp10. 30 lbs live rock. 4" oolite DSB. |
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06/13/2012, 09:56 AM
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#4 |
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-RT * ln(k)
  
Join Date: Sep 2010
Location: Little Rock
Posts: 6,315
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Do you have corals? Are you dosing alk? You may need to. Corals can suck up alkalinity at a surprising rate sometimes.
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David Current Tank: Undergoing reconstruction... |
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06/13/2012, 10:01 AM
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#5 | |
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Reef Chemist
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 81,937
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Quote:
Because you are not adding enough alkalinity to offset the demand. You can add more of the Biocalcium each day (no, it won't push calcium up too much but will boost alkalinity) until you get to your target, or you can just use baking soda (but that will allow calcium to decline steadily). Or you could use a two part or limewater, which are both excellent methods. 
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Randy Holmes-Farley Club 65535 Current Tank Info: 120 mixed reef |
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06/13/2012, 11:26 AM
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#6 | |
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Registered Member
Join Date: Aug 2010
Posts: 188
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Quote:
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JBJ 28g nano-cube LED. Lighting: 25x3w 14k daylight. Tunze DOC 9002 skimmer. Vortech mp10. 30 lbs live rock. 4" oolite DSB. |
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06/13/2012, 02:07 PM
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#7 |
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Reef Chemist
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 81,937
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 Good luck.
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Randy Holmes-Farley Club 65535 Current Tank Info: 120 mixed reef |
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06/13/2012, 03:32 PM
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#8 |
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Registered Member
 Join Date: Dec 2008
Location: Garden Grove, Ca
Posts: 7,340
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I would also boost your magnesium to 1350, 1200 is low.
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06/13/2012, 04:55 PM
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#9 |
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Dr. Reef at ur service
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true all above. i would start with mag, bring it up 1300+ ideally 1300-1450 range. once thats stable then alk and calcium. use a reef calculator plot in ur product type and tank volume and it will give u the results in how much u should be dosing.
Note: if mag levels are low ur cal and alk will never stable.
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Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE |
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