SammyTheLotus
New member
- Joined
- Feb 17, 2016
- Messages
- 227
- Reaction score
- 3
- Points
- 0
- Location
- Newfoundland and Labrador
- Country
- Canada
- Display Name
- Samantha
Hi everyone! 
I'm a newbie at all of this, so forgive me if this question is a little dumb! I'm cycling my 30 gallon tank (and have been for about two weeks now!) And I've read that adding a filter cartridge to my tank from an already established aquarium will speed up the cycling process.
My sister offered to give me her old filter from her already cycled 25 gallon tank, but her fish recently just got over a case of fin rot and ick.
My question is that would the bacteria that caused fin rot/ick in her tank transfer over to my cycling tank through me using her old filter? Or would it be safe for me to use the cartridge to help along my cycling process?
I currently don't have any axolotl in my tank as I am not live cycling! So I just really want to be sure before I use it and accidentally contaminate my new tank!
Thanks in advance!

I'm a newbie at all of this, so forgive me if this question is a little dumb! I'm cycling my 30 gallon tank (and have been for about two weeks now!) And I've read that adding a filter cartridge to my tank from an already established aquarium will speed up the cycling process.
My sister offered to give me her old filter from her already cycled 25 gallon tank, but her fish recently just got over a case of fin rot and ick.
My question is that would the bacteria that caused fin rot/ick in her tank transfer over to my cycling tank through me using her old filter? Or would it be safe for me to use the cartridge to help along my cycling process?
I currently don't have any axolotl in my tank as I am not live cycling! So I just really want to be sure before I use it and accidentally contaminate my new tank!
Thanks in advance!