I had 3 glofish tetras in a 5-gal
tank (which I know now was too many) and was told at a pet store that I should have at least 5 to make a school so needed a 10-gal
tank so they would behave normally and not be stressed. I got that, set it up and moved the 3 glofish to their new home.
I just went to another pet store (a week later) that had a sale and was going to get 2 more glofish tetras, but they told me that 5 was too many for a 10-gal
tank because they get at least 3 inches long so 3 is the most I should have.
Should I keep it at 3 or get 2 more? I have no idea.