ad-button
Reply
 
LinkBack Thread Tools
Old 08-08-2008, 10:46 AM
  #1
Astrea Snail
 
Join Date: Jul 2008
Posts: 71
Skin: Mint
Karma: 10
Reefboi is doing something  right


 
gallery
Question High Alk

Hi... I have a very High ALK in my tank. How can I lower those levels to 2.5 into normal range? On the test kit it explains how to raise the Alkalinity but it doesn't mention anything about how to lower it if it is very high like in my case.
-tx
Reefboi is offline   Reply With Quote Top
 
Click Here!
Old 08-08-2008, 10:50 AM   #2
Snowflake Eel
 
Bogie's Avatar
 
Join Date: Feb 2008
Location: CT
Posts: 2,350
Skin: Mint
Karma: 17797
Bogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond repute


contributor 
 
gallery
Default

Water changes will dilute any levels too high in your tank.
Bogie is offline   Reply With Quote Top
Old 08-08-2008, 10:50 AM   #3
3reef Moderator
 
missionsix's Avatar
 
Join Date: Sep 2007
Location: Bend,Oregon - USA
Age: 40
Posts: 5,741
Skin: Mint
Karma: 2136051
missionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond repute


supporter 
3reefer 
contributor 
protector 
3link 
gallery
Default

What is your mag. testing at?
missionsix is offline   Reply With Quote Top
Old 08-08-2008, 10:54 AM   #4
3reef Moderator
 
missionsix's Avatar
 
Join Date: Sep 2007
Location: Bend,Oregon - USA
Age: 40
Posts: 5,741
Skin: Mint
Karma: 2136051
missionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond repute


supporter 
3reefer 
contributor 
protector 
3link 
gallery
Default

Referenced,
This is a great link.
Reef Aquarium Water Parameters by Randy Holmes-Farley - Reefkeeping.com
Magnesium
Magnesium's primary importance is its interaction with the calcium and alkalinity balance in reef aquaria. Seawater and reef aquarium water are always supersaturated with calcium carbonate. That is, the solution's calcium and carbonate levels exceed the amount that the water can hold at equilibrium. How can that be? Magnesium is a big part of the answer. Whenever calcium carbonate begins to precipitate, magnesium binds to the growing surface of the calcium carbonate crystals. The magnesium effectively clogs the crystals' surface so that they no longer look like calcium carbonate, making them unable to attract more calcium and carbonate, so the precipitation stops. Without the magnesium, the abiotic (nonbiological) precipitation of calcium carbonate would likely increase enough to prohibit the maintenance of calcium and alkalinity at natural levels.
For this reason, I suggest targeting the natural seawater concentration of magnesium: ~1285 ppm. For practical purposes, 1250-1350 ppm is fine, and levels slightly outside that range (1200-1400 ppm) are also likely acceptable. I would not suggest raising magnesium by more than 100 ppm per day, in case the magnesium supplement contains impurities. If you need to raise it by several hundred ppm, spreading the addition over several days will allow you to more accurately reach the target concentration, and might possibly allow the aquarium to handle any impurities that the supplement contains.
An aquarium's corals and coralline algae can deplete magnesium by incorporating it into their growing calcium carbonate skeletons. Many methods of supplementing calcium and alkalinity may not deliver enough magnesium to maintain it at a normal level. Settled limewater (kalkwasser), in particular, is quite deficient in magnesium. Consequently, magnesium should be measured occasionally, particularly if the aquarium's calcium and alkalinity levels seem difficult to maintain. Aquaria with excessive abiotic precipitation of calcium carbonate on objects such as heaters and pumps might suffer from low magnesium levels (along with high pH, calcium, and alkalinity).
missionsix is offline   Reply With Quote Top
Old 08-08-2008, 10:55 AM   #5
Astrea Snail
 
Join Date: Jul 2008
Posts: 71
Skin: Mint
Karma: 10
Reefboi is doing something  right


 
gallery
Default

Quote:
Originally Posted by missionsix66 View Post
What is your mag. testing at?
haha reads about 3.6
Reefboi is offline   Reply With Quote Top
Old 08-08-2008, 10:56 AM   #6
3reef Moderator
 
missionsix's Avatar
 
Join Date: Sep 2007
Location: Bend,Oregon - USA
Age: 40
Posts: 5,741
Skin: Mint
Karma: 2136051
missionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond repute


supporter 
3reefer 
contributor 
protector 
3link 
gallery
Default

Quote:
Originally Posted by Reefboi View Post
haha reads about 3.6
Not quite sure what that translates to in ppm.
missionsix is offline   Reply With Quote Top
Old 08-08-2008, 11:27 AM   #7
3reef Sponsor
 
Tangster's Avatar
 
Join Date: Aug 2006
Location: Va/Ct
Posts: 5,646
Skin: Mint
Karma: 40947
Tangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond repute


 
gallery
Default

Where did you come up with the idea that 2.5 alk was high ? thats about as low as any form of saltwater can be and keep much alive I run mine 2.5 is about 6 or 7 dkh.. I never let mine fall below 11dkh or 4.25 m/l
Tangster is offline   Reply With Quote Top
Old 08-08-2008, 11:36 AM   #8
Snowflake Eel
 
Bogie's Avatar
 
Join Date: Feb 2008
Location: CT
Posts: 2,350
Skin: Mint
Karma: 17797
Bogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond reputeBogie has a reputation beyond repute


contributor 
 
gallery
Default

And if you don't want to do water changes, FWIW, I think vinegar could be used to bring the Alk down, but like Tanster said, why would you want it lower than 6-7m/l?
Bogie is offline   Reply With Quote Top
Old 08-08-2008, 01:35 PM   #9
3reef Sponsor
 
Tangster's Avatar
 
Join Date: Aug 2006
Location: Va/Ct
Posts: 5,646
Skin: Mint
Karma: 40947
Tangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond repute


 
gallery
Default

Quote:
Originally Posted by Bogie View Post
And if you don't want to do water changes, FWIW, I think vinegar could be used to bring the Alk down, but like Tanster said, why would you want it lower than 6-7m/l?
Anytime you feel you have to pull the carbonates down to lower P.H use club soda far more safe then vinegar
Tangster is offline   Reply With Quote Top
Old 08-08-2008, 07:33 PM   #10
3reef Moderator
 
missionsix's Avatar
 
Join Date: Sep 2007
Location: Bend,Oregon - USA
Age: 40
Posts: 5,741
Skin: Mint
Karma: 2136051
missionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond reputemissionsix has a reputation beyond repute


supporter 
3reefer 
contributor 
protector 
3link 
gallery
Default

Quote:
Originally Posted by Reefboi View Post
Hi... I have a very High ALK in my tank. How can I lower those levels to 2.5 into normal range? On the test kit it explains how to raise the Alkalinity but it doesn't mention anything about how to lower it if it is very high like in my case.
-tx
How high is your alk/kh?
missionsix is offline   Reply With Quote Top
 

Click Here!

Reply

Tags
alk, alkalinity

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
pH too high way to high Md_reefer Water Chemistry 11 07-26-2007 08:52 AM
What if calcium is to high? Ruben Water Chemistry 6 05-17-2005 08:42 AM
Effects of High Salinity??? cpandrewschmidt General Reef Topics 4 01-13-2005 04:51 AM
Mag level high mikeb Water Chemistry 17 11-15-2004 11:23 AM
mag level high mikeb General Reef Topics 6 11-14-2004 07:27 AM

Join 3reef Aquarium Forums