Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
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 08-09-2007, 11:03 PM   #1
Aquarium Advice Newbie
 
Join Date: Aug 2007
Posts: 2
PHOSBAN=LOW PH?????

Hi all,

I started slow with the phosban, and am up tp 100g in my 72g reef. My PH has dropped from 8.1 to 7.9. in the past month. Calc. is at 500, Mag. at 1500. Alk is 8.5. Nitrates at 10.

How do I rectify the low PH while still using the Phosban reactor??
All help would be appreciated.
__________________

__________________
baily2007 is offline   Reply With Quote
Old 08-09-2007, 11:56 PM   #2
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
What time of the day are you checking your PH?
__________________

__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 08-10-2007, 01:02 AM   #3
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
Also... how often are you doing partial water changes, and how much?
__________________
Kurt_Nelson is offline   Reply With Quote
Old 08-10-2007, 11:11 AM   #4
Aquarium Advice Newbie
 
Join Date: Aug 2007
Posts: 2
I am checking my Ph at the end of my light cycle which is about 9:00PM. As to PWC, I do 25-30% monthly.
__________________
baily2007 is offline   Reply With Quote
Old 08-10-2007, 11:53 AM   #5
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
I doubt the reactor is reducing your pH. I run one on mine and haven't had any problems. Is it possible you used on of your old phs, reducing your water movement instead of buying a new ph for the reactor? Realistically, that is not a huge drop and should not harm your critters.
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 08-10-2007, 12:01 PM   #6
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
I found this article that maybe you haven't seen...

http://www.advancedaquarist.com/issu...004/review.htm

I didn't realize running Phosban could lower your pH. Since I've never run Phosban, I'm not sure how best to keep your pH higher while still using it - but more frequent water changes might be one of the easier methods. Maybe every other week, or perhaps even a smaller amount every week?
__________________
Kurt_Nelson is offline   Reply With Quote
Old 08-10-2007, 12:03 PM   #7
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
Nice one Kurt, I stand corrected. You can also add more surface ripple to compensate.....
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 08-10-2007, 12:10 PM   #8
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
What surprised me in the article was the fact that when his alkalinity was high, the Phosban caused a dramatic decrease in the alkalinity levels. But with lower alkalinity, there was hardly any change. If nothing else, the article just reinforced what I'd just read elsewhere - there are sooooo many chemical interactions going on in our tanks, it's kind of silly to think we understand exactly what's going on by doing tests for just a handful of things (pH, alk, Ca, PO4). It's no excuse to stop testing, but we just need to take that into account when we start tinkering with our water parameters.
__________________
Kurt_Nelson is offline   Reply With Quote
Old 08-10-2007, 01:03 PM   #9
Aquarium Advice Addict
 
Join Date: Aug 2003
Location: philadelphia. PA.
Posts: 2,679
I've heard of that happening. I never use more than 1/2 the recommended amount to avoid issues. 7.9 doesn't worry me, but being that low at the end of the light cycle means you're probably dipping below 7.8 at night- not good. To raise PH you could use kalkwasser for evaporation replacement and drip it in over night. I've also heard of people plumbing their skimmer air intake to an outdoor vent to increase O2 and thus PH. You may have to decrease the amount of phosban or discontinue use and compensate by having good flow, powerful skimmer, not over feeding, etc.
Quote:
Originally Posted by Kurt_Nelson
If nothing else, the article just reinforced what I'd just read elsewhere - there are sooooo many chemical interactions going on in our tanks, it's kind of silly to think we understand exactly what's going on by doing tests for just a handful of things
The longer I'm in this hobby, the less I realize I know. It's amazing.
__________________

__________________
Mike
MT79 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
PhosBan Reactor madlynb General Hardware/Equipment Discussion 2 05-14-2009 10:45 PM
pump for phosban morgan24 General Hardware/Equipment Discussion 5 01-13-2006 02:15 PM
phosban and alk Dr.Nate Saltwater Reef Aquaria 3 01-11-2006 05:40 PM
phosban batfire General Hardware/Equipment Discussion 8 01-07-2006 10:55 AM
Phosban Reacter Thumper Saltwater & Reef - Getting Started 3 04-09-2005 02:00 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 02:00 PM.


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