View Full Version : Freshwater sponge filter for saltwater QT?

02/01/2006, 05:20 PM
I'm starting a 75gal reef and want to establish a QT with a sponge filter. I have some fresh water tanks... can I "seed" a sponge filter in a fresh water tank, and then use it in my saltwater QT? Will the saltwater kill the freshwater nitrifying bacteria? Should I set up my 75 gal with LR/LS without fish and then use THAT tank to seed my sponge filter? OR get some LS or rubble from LFS for QT? Thanks.

02/01/2006, 09:43 PM
Forget the sponge filter and use live rock and/or sand.


02/01/2006, 09:49 PM
I can't answer the contamination between fresh and salt sponge use, but for a QT, I think it is generally not advised to use LR and sand for a variety of reasons. A sponge is really recommended, from all the expert advice I got when I had to qt my puffers. Nothing else in the tank like rock, sand, etc.. PM Puffer Queen and see if she has some advice for you.

Good luck!

02/01/2006, 10:05 PM
i would just let your tank cycle and seed it for a couple days in there, if thats not the case maybe seed it behind the scenes at a LFS or a friends tank. i dont know about the freshwater thing though because i have never done it.

02/03/2006, 09:41 AM
Freshwater bacteria will be killed in saltwater.


02/03/2006, 09:43 AM
<a href=showthread.php?s=&postid=6656900#post6656900 target=_blank>Originally posted</a> by LittlePuff
Freshwater bacteria will be killed in saltwater.

That would be my guess too.