Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 09-01-2003, 05:35 PM   #1
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
Low pH and high/good alk

Hey guys. Quick question regarding my new tank.

Just took some readings to check pH and KH (alk) in my newly set up tank.

Alk comes out at 10.5 dKH
pH comes out at ~8.0.

Do I need to be concerned about this pH at all? I know it is a tad low when compared to sea water. My LR is coming in on Thursday and that will start the cycle for me.

Do I need to adjust this pH to 8.3 before my LR comes in or should I just let it be and let the tank cycle? If so, after cycling, then should I adjust the pH up to 8.3 if it is still low??

Using Instant Ocean salt and Aragamax sand. 40 gallon tall...
__________________

__________________
Biggen is offline   Reply With Quote
Old 09-01-2003, 05:44 PM   #2
Aquarium Advice Activist
 
Join Date: Aug 2003
Location: indiana
Posts: 176
Do you have any substrate? This will help your ph. IMO I really don't see a problem I too had an 8.0 reading for ph, and I added live rock and it was ok. the preferred of ph is between 8.2-8.4 So it isn't like your way off so I wouldn't worry.
__________________

__________________
triggers is offline   Reply With Quote
Old 09-01-2003, 05:53 PM   #3
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
Quote:
Do you have any substrate?
4 inch DSB Aragamax sand...

Yeah I know I am pretty close. Hopefully it will right itself once it cycles completely.
__________________
Rodman
Biggen is offline   Reply With Quote
Old 09-01-2003, 07:50 PM   #4
AA Team Emeritus
 
reefrunner69's Avatar
 
Join Date: May 2002
Location: Cedar Key, FL
Posts: 1,663
Quote:
the preferred of ph is between 8.2-8.4 So it isn't like your way off so I wouldn't worry.
Just a FYI, PH is logorithmic, each 1.0 rise or fall in ph is ten times more alkaline or acidic respectively. So a difference of .2 or .4 is 2 - 4 times more alkaline than the 8.0 your working with now 8O

Quote:
Do you have any substrate?
This is really a misconception. Aragonite substrate will not buffer above 8.0, for it to buffer higher than that the ph would have to drop drastically low to dissolve enough aragonite.

All that said, without knowing the CA reading or Mg, it is very difficult to say whether the ALK is good or not. It appears to be, but without the proper CA reading, it may be way off. Most likely the cause of the lowered ph is increased CO2 n the water, try creating more turbulence at the surface or even pumping air in from the outside to increase o2 levels in the tank.
__________________
Kevin

Visit Nature Coast Photography
reefrunner69 is offline   Reply With Quote
Old 09-01-2003, 10:16 PM   #5
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
Quote:
All that said, without knowing the CA reading or Mg, it is very difficult to say whether the ALK is good or not. It appears to be, but without the proper CA reading, it may be way off. Most likely the cause of the lowered ph is increased CO2 n the water, try creating more turbulence at the surface or even pumping air in from the outside to increase o2 levels in the tank.
Ok. My CA and Mg test kits are coming in this week. I will check those levels as soon as I receive them. I did not know that CA and Mg had an effect on Alk at all. Guess I need to head back to the research room.

There should be plenty of surface turbulence between the two ph's and the return pipe from the sump.

Dunno what it is....
__________________
Rodman
Biggen is offline   Reply With Quote
Old 09-03-2003, 11:45 PM   #6
Aquarium Advice Regular
 
Join Date: Aug 2003
Location: maryland
Posts: 82
you say to add air to you tank if you ph drops? did i read that right? if so how much air is to much air and would that raise my ph! if it is low say 7.8
thanks michael
__________________
border324 is offline   Reply With Quote
Old 09-04-2003, 06:16 AM   #7
AA Team Emeritus
 
reefrunner69's Avatar
 
Join Date: May 2002
Location: Cedar Key, FL
Posts: 1,663
Increasing oxygen to the tank, is usually the first thing you want to do when having a low ph problem. This can be accomplished by increasing surface agitation of the water.
__________________
Kevin

Visit Nature Coast Photography
reefrunner69 is offline   Reply With Quote
Old 09-04-2003, 11:22 AM   #8
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
I still haven't gotten in my calk kit. But at least I understand the relationship between Mg, Calk, and Alk now.


Just put in my 45# of LR this morning. The cycle is starting...
__________________
Rodman
Biggen is offline   Reply With Quote
Old 09-04-2003, 05:31 PM   #9
Aquarium Advice Regular
 
Join Date: Aug 2003
Location: maryland
Posts: 82
what if i was to use the ventrie air set up on my filter to put air bubbles in the tank is that a good idea?
__________________

__________________
border324 is offline   Reply With Quote
Reply

Tags
low ph

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
High Alk...good or bad? SeeDemTails Saltwater & Reef - Getting Started 5 05-12-2006 11:14 AM
low alk Dr.Nate Saltwater Reef Aquaria 1 03-03-2006 12:15 PM
My alk. is to low... adacaro Saltwater Reef Aquaria 3 12-28-2005 10:55 PM
Low Alk, normal PH and Calcium! What to do? Joshsmit56001 Saltwater Reef Aquaria 7 12-24-2004 11:09 AM
Ca very high, ph high, alk low, what to do? Joshsmit56001 Saltwater Reef Aquaria 5 02-19-2004 05:35 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 02:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.