At least they told you it was freshwater and to feed it meaty foods.

More than a lot of people get.
No, they do not do well in groups. That's what I mean by evil. The minute they get into the same tank, one goes after the other. So they are in separate tanks. All puffers are fine as solos and should be kept that way with very few exceptions (namely DPs kept together or SAPs). These guys in particular cannot be kept in pairs or groups.
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Tina
Puffers:
Auriglobus silus x2
Colomesus asellus x1
Tetraodon travancoricus x1
Tetraodon biocellatus x2
Tetraodon nigroviridis x1
Tetraodon baileyi x2
Tetraodon lineatus x1
Tetraodon palembangensis x1
The greatness of a nation and its moral progress can be judged by the way in which its animals are treated. - Mohandas Gandhi