strange change in water parameters - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 07-21-2004, 05:37 AM Thread Starter
Algae Grower
Join Date: Jul 2004
Location: Georgia
Posts: 113
strange change in water parameters

I use a 29 gallon tank as a water conditioning reservoir for changing the water in my discus' 75 gallon tank. I run 300 gph HOB filter with peat to drop the pH to prepare it for the next water change in the 75g. My tap water has a pH of about 7.8, a very low GH and KH each of 3 degrees, 10 ppm of nitrate, and 0 ppm of ammonia and nitrite.

I filled the 29g about one week ago. As usual, the pH has dropped to about 6.8 and the hardness has stayed the same. However, the nitrates have increased to 20 ppm and the nitrite test is now reading 5 ppm.

Does this make any sense? This is a clean tank with no fish or plants, no substrate, and it was emptied and cleaned a month ago for this purpose. This is the third batch of water I've used it to prep, and the previous two times it did nothing strange.

Any ideas?

steven is offline  
Sponsored Links
post #2 of 4 (permalink) Old 07-21-2004, 09:53 AM
Wannabe Guru
ninoboy's Avatar
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261
Do you think that the peat can go "bad" overtime and becomes ammonia source thus make the tank to go thru a cycle??

Eheim Pimp #21 (2) 2028 and auto feeder
ninoboy is offline  
post #3 of 4 (permalink) Old 07-21-2004, 04:05 PM
Planted Tank Guru
malkore's Avatar
Join Date: Nov 2003
Location: Lincoln, NE
Posts: 2,165
do you have another nitrate test kit to validate the first one's results?

any used sponges in the HOB?

Filstar XP2 PIMP #3
Visit my aquarium pages - see specs on my tanks, and photos of how they've evolved
malkore is offline  
post #4 of 4 (permalink) Old 07-22-2004, 05:50 AM
Wannabe Guru
Join Date: Oct 2002
Location: Houston, TX
Posts: 1,614
decaying peat?

Might be time to dump that peat and get a new charge, I think it is decaying.

110G, 10 adult discus, barebottom with plants on wood
58G, 3 adult discus, barebottom with plants on wood
59G thickly planted tanks, rummey nose tetras, kuhlies
300G goldfish pond outside
anonapersona is offline  

Quick Reply

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


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

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
fish deaths and ich problems???? cvarcher Fish 18 05-18-2007 02:17 PM
Keeping hospital tank water at the right parameters?? Laith Fertilizers and Water Parameters 5 08-01-2004 02:30 PM
ultrasonic foggers? Anonymous Riparium/Terrarium/Vivarium 44 06-08-2004 08:20 AM
Plants love it when I do a water change. lanstar Fertilizers and Water Parameters 36 04-23-2004 08:57 PM
CO2 unit...water change question. KellyQ General Planted Tank Discussion 4 12-19-2003 12:06 AM

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