Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Getting Started
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 03-18-2012, 02:42 AM   #1
Aquarium Advice Newbie
Join Date: Mar 2012
Posts: 6
Filter swap a good idea?

Hi there!

I have a 10 gallon tank and a new 20 gallon tank. My fish are tetras and a small Pleco (I have a large tank for him in storage, once the time comes.) To cycle the new tank I moved a couple cups of gravel and the filter from the 10g to the new tank. I know cycling is a process, so I put the new 20g filter on my 10g tank, where the fish currently are (didn't want them waiting around in an un-filtered environment.)

I am going to test the water tomorrow and see where my levels are.

I was wondering if the filter swap was a good idea? Should I put both filters on the new tank in a couple days? And then move everyone over? I'm unsure of how long a fish-less, old media cycle takes in a new tank.

I was told to leave the old filter on the new tank for a few weeks. While having the new filter running as well.

RileyK is offline   Reply With Quote
Old 03-18-2012, 03:11 AM   #2
Aquarium Free - 2+ Years
mfdrookie516's Avatar

POTM Champion
Join Date: Jul 2009
Location: Winchester, Ky
Posts: 19,409
If you're only moving over the inhabitants of the 10g, then you can go ahead and do so. Cycling is a process, as you said... however, that process has already been completed in the 10g, and the majority of the bacteria needed to process ammonia and nitrite will be housed in that filter. I'd just go ahead and move them, while keeping an eye on ammonia and nitrite, prepared to do a water change if things get wonky.

I've fully stocked brand new tanks immediately by pulling over a filter from another tank with no ill effects FWIW.


"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry
mfdrookie516 is offline   Reply With Quote
Old 03-18-2012, 03:16 AM   #3
Aquarium Advice Newbie
Join Date: Mar 2012
Posts: 6
OK. To make double sure I'm going to leave the new filter on the old tank over night, move it to the new tank tomorrow, leave it for a few hours, than move my fish over. The old filter has been on the new tank since this a.m. By tmw evening, I think things will be good to go (both filters will be on new tank too.)
RileyK is offline   Reply With Quote
Old 03-18-2012, 03:28 AM   #4
Aquarium Advice Obsessed
Mumma.of.two's Avatar

Join Date: Jul 2011
Location: Sunny Queensland, Australia
Posts: 11,132
Move the fish the same time as the cycled filter. You are moving the bacteria colony to the new tank so they will be able to process ammonia (and nitrite) in that tank straight away.
Mumma.of.two is offline   Reply With Quote
Old 03-19-2012, 06:59 PM   #5
Aquarium Advice Newbie
Join Date: Mar 2012
Posts: 6
Thank you! All is well, tested water with Master Kit today. Will keep checking every couple days
RileyK is offline   Reply With Quote

filter, swap

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
Sump holes for ext filter guppy grandma General Hardware/Equipment Discussion 5 03-17-2012 09:34 PM
Any foreseeable problems with this filter system? Photoevangelist Saltwater Reef Aquaria 5 03-17-2012 08:25 PM
Good to be back mommytron Freshwater & Brackish - Planted Tanks 1 03-17-2012 08:00 PM
Fluval Pre-filter vs. Fluval Bio Rings Jill Freshwater & Brackish - General Discussion 3 03-17-2012 02:12 PM
Noisy Canister filter Nik74 General Hardware/Equipment Discussion 1 03-17-2012 12:46 PM

» Photo Contest Winners

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 10:55 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.