Quote Originally Posted by Louis Charles Bruckner View Post
You'll have to become careful on how many filters you do add,
Too much water flow in the tank Will make it so the frog can't rest and stress it out.

Yes I recommend you getting a used filter from your friend or some gravel wrapped up in some nylon hose or cheesecloth and put that in your tank.That's what's commonly known as seeing bacteria.
The only problem with feeder goldfishes that they carry parasites and you really don't want to feed those to your frog.
As far as the bacteria that's not so much of an issue.
I run extra filters on my fish tanks not my frog tanks. I use a canister filter on my frog tank and it works perfectly fine, it is healthy to have some flow in your tank otherwise you will wind up with dead pockets and bluegreen algae.