aren't you just adding one puffer? I mean I am not super experienced yet but I would assume that isn't going to be much of a bioload for a 6 gallon and considering you have a head start on the cycle with the seeding going on I would assume you would be good to go assuming you test the tank regularly and are ready to do frequent water changes for a lil while... just my two cents
I am thinking the same. All the filter floss in this new tanks filter is from my established tank. So are all the plants. And yes just one puffer. I read a lot on the dwarf puffers and a lot of people said I could keep 2 in this tank. A male and a female, but I just don't feel confident in that. So at least for now I am just getting one.