pH = 5.5, what now? - The Planted Tank Forum
 2Likes
  • 4 Post By Nlewis
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 02-22-2007, 05:23 PM Thread Starter
 
PTrader: (0/0%)
Join Date: Feb 2007
Posts: 17
pH = 5.5, what now?

Hi all. I'm still a little new to this whole planted tank gig.

Anyway, I tested the pH of my 12 gallon planted tank and it is consistently at 5.5. Even if I try doing 25%-50% water change it will revert back to 5.5 within a day.

My question is, should I do anything about it? Only plant that seems to be growing ok are the stem plants. My pearl grass is sorta like dying. Java moss isn't looking particularly healthy either. I've stopped using DIY CO2 for a couple of days and there's no change in the pH.

The tank is 22 days old and I've already a number of fishes in there.
sweetpuff is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 02-22-2007, 07:44 PM
 
PTrader: (50/100%)
Join Date: Mar 2006
Posts: 428
Your low ph could be caused by rotting organic material in the tank. Too much fish food, too much fish poop, a rotting piece of driftwood, dead rotting plants, etc. Do you use a gravel vac? Maybe cut back on the feeding? Just doing a water change won't help much if your not getting rid of the source cause.
MikeNas102 is offline  
post #3 of 14 (permalink) Old 02-23-2007, 05:40 AM Thread Starter
 
PTrader: (0/0%)
Join Date: Feb 2007
Posts: 17
Thanks! I'll look into it. The water's dKH is 2, if that helps any...
sweetpuff is offline  
 
post #4 of 14 (permalink) Old 02-23-2007, 01:33 PM
 
PTrader: (0/0%)
Join Date: Feb 2004
Posts: 197
have u tested the ph out of the tap water after it rested for 24 hours?? if u have then if its still 5.5 then water changes arent going to help raise it?? or it could be a bad test kit.
John S is offline  
post #5 of 14 (permalink) Old 02-23-2007, 03:48 PM
 
PTrader: (59/100%)
Join Date: Mar 2006
Posts: 3,254
my tank runs at about 5.5 and has for over a year.
I never have raised it, nor will I.
fresh_lynny is offline  
post #6 of 14 (permalink) Old 02-23-2007, 06:38 PM Thread Starter
 
PTrader: (0/0%)
Join Date: Feb 2007
Posts: 17
I tried dropping some corals into my HOB and pH shot up from 5.5 to 7.5 within 10 hours. My pencil fishes are turning very 'white'. I've removed about half the amount of corals and did about 30% water change.

Anything else I should be doing to save my fishes from pH shock? I didn't realised that pH can change so much.
sweetpuff is offline  
post #7 of 14 (permalink) Old 02-23-2007, 07:55 PM
Planted Tank Enthusiast
 
cbennett's Avatar
 
PTrader: (4/100%)
Join Date: Oct 2005
Location: San Jose, CA
Posts: 786
my pH stays consistently ~5.7 with zero problems, plants are growing gangbusters and the fish are breeding like crazy. BUT i do make sure that I keep the KH around 2 degrees. Making sure you have enough KH means that your pH won't crash if you add CO2 - it'll keep the pH nice and steady.

Christine

P.S. KH 2°dH = KH 35mg/L = KH 35ppm
cbennett is offline  
post #8 of 14 (permalink) Old 02-24-2007, 12:49 AM
Planted Tank Guru
 
mrbelvedere's Avatar
 
PTrader: (51/100%)
Join Date: Nov 2005
Location: Saint Joseph, Illinois
Posts: 2,783
Send a message via AIM to mrbelvedere Send a message via Yahoo to mrbelvedere
Keep your kH low. I've yet to see any negative repercussions of a low pH. Mine hovers around 4-4.5. My kH is zero, gH also zero.

In college....so no aquariums for a while.....
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
mrbelvedere is offline  
post #9 of 14 (permalink) Old 02-27-2007, 05:57 AM
Children Boogie
 
mistergreen's Avatar
 
PTrader: (13/100%)
Join Date: Dec 2006
Location: Cincinnati
Posts: 16,743
Quote:
Originally Posted by mrbelvedere View Post
Keep your kH low. I've yet to see any negative repercussions of a low pH. Mine hovers around 4-4.5. My kH is zero, gH also zero.
huh? do you have plants? I thought plant thrive with some KH & GH.
They need Mg, Ca etc..


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
mistergreen is offline  
post #10 of 14 (permalink) Old 02-27-2007, 02:15 PM
 
PTrader: (59/100%)
Join Date: Mar 2006
Posts: 3,254
Mr Belevedere is 100% correct. I have a KH of zero as well and a very low pH. No problems....fish happy and spawning plants grow like gangbusters.... that pH crash crap has been disproven, so it may be best to stop perpetuating the same old dribble... DO not drop coral in your tanks or anything of the like...the pH is not harming your fish <that likely is>

You can dose Mg with your traces and a little CaCl2 with traces while EI dosing, but no need to whip out the test kits and put in coral and Baking soda and all of that crapola.
fresh_lynny is offline  
post #11 of 14 (permalink) Old 12-21-2017, 01:04 AM
Algae Grower
 
bud40oz's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2017
Location: jackson.Mi
Posts: 81
south american fish like low ph don't they.
bud40oz is offline  
post #12 of 14 (permalink) Old 12-21-2017, 01:41 AM
Planted Tank Guru
 
Nlewis's Avatar
 
PTrader: (3/100%)
Join Date: Dec 2015
Location: Northern Va
Posts: 2,402
Quote:
Originally Posted by bud40oz View Post
south american fish like low ph don't they.
You really dug this thread out of the archives.

Just a noob


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Nlewis is offline  
post #13 of 14 (permalink) Old 12-21-2017, 10:03 PM
Algae Grower
 
bud40oz's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2017
Location: jackson.Mi
Posts: 81
haha i actually googled low ph and found it. turns out google is a better search tool that plantedtank.nets own search tool . go figure
bud40oz is offline  
post #14 of 14 (permalink) Old 12-21-2017, 11:46 PM
Planted Tank Guru
 
Nlewis's Avatar
 
PTrader: (3/100%)
Join Date: Dec 2015
Location: Northern Va
Posts: 2,402
Quote:
Originally Posted by bud40oz View Post
haha i actually googled low ph and found it. turns out google is a better search tool that plantedtank.nets own search tool . go figure
I know, I always use the google option.

Just a noob


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Nlewis is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome