Gravel to Sand - Page 2 - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #16 of 16 (permalink) Old 12-25-2012, 06:00 PM
Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 10,489
Nitrifying bacteria are not fast growing species.
If they are constantly being removed from one area (filter media) then the best population will be elsewhere in the tank. On the substrate, on plant leaves and stems, on driftwood...
Then you introduce new filter media and the bacteria start growing on it. But all the established bacteria are taking a lot of the ammonia, so there is not a lot available to the bacteria trying to get going on the new filter media. So growth is slow. Then that media is thrown away, and the bacteria in the rest of the tank remains to take care of the ammonia.

Throwing away the filter media, or cleaning it with chlorinated water often enough to keep the bacteria population very low is not going to cause a significant cycle in the tank as long as there is other media (substrate etc.) for bacteria.
Note R.sok's post, #12. A bare bottom tank has more bacteria in the filter, so the loss is significant.

Plants are also a part of the bio filter, and they also help pick up the slack when small amounts of bacteria are removed.
Diana is offline  
Sponsored Links

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

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