Thanks so much, I will look into these. Can check with the 'fish place' (hesitate to call it a lfs) if they have the green neon.
I was reading the other thread about the guy with the goldfish and then the mollies dying... am wondering if one of those bacterial starters would be a good idea with my tank (if I can't get any ammonia) or just to keep at it another week using fish food (had to remove the fish meat as it was stinking even with water change!)
I know I saw the Safe Start at the fish place, and possibly the One & Only as well.
One of the smaller shops I found had other animals as well, but is connected to a vet practice. I got a good feeling about them because they had a very large macaw and the lady told me they've had several offers for him but on asking the prospective owners some questions refused to part with him until they can be sure they get an owner willing to commit the time to care for him properly. So I am guessing they might be a good place to go for my fish :)
Thanks so much for your patience, I am sure all the newbie questions must get frustrating & repetitive! I think is a bit harder here as so many people just lob up and buy a 500G marine setup off the bat and don't really tinker with smaller setups.
Edit: Just re-read the green neon tetra page, I htink my pH is wrong for them since it's been hovering between 6.4 and 6.8 the whole time. Also, the tank is less than the recommended length. I don;t want them to not swim happily...