Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
Me think's OP may have did the right thing by borrowing filter media from established tank but maybe placed it in the tank day's before fishes were to be introduced .
This might have allowed a portion of the bacterial microbes to go dormant, or begin to die back to level's that are needed for amount of organic matter from soil's, fish food's,fish waste Present ,which beg's the question,,,what in the tank could be contributing to the ammonia levels that made OP think they didn't provide enough media from the established tank.(no fishes in it yet)
Could be there was no fishes in the new cycling tank with borrowed media so no food for bacteria to process.
Mention is made of established 29 gal (assume 10gal was tore down or is quarantine).
I would rob some more media from the 29 gal already established, and place it in the tank for the puffer's hours before placing the fishes rather than day's.
Would not expect three small puffer's to create much in the way of bio load assuming again(alway's a bad thing) that they aren't being over fed.
Maybe would still test for ammonia each morning or evening and perform water change as mentioned if ammonia test read's anything but zero.
Especially in brand new un established tank that is possibly already home for these three small fish despite what has been posted.
P.S. Would wonder if it's possible that a few snails perhaps in already established tank, could not be provided for the puffer's as regular portion of their diet and to help keep their little beak's in good shape?
Snail's can be a good sign in the aquarium if they are busily doing what snail's do, but can also be a bad sign if sudden movement's from the substrate area up the glass in large number's during daylight hour's.
It occur's I am rambling ,so must sign off and get to work .
Last edited by roadmaster; 02-17-2017 at 05:03 AM.