I don't know if they are really personable per se. they are cute little fish and swim kind of funny and slow. but they all pretty much do the same thing.
a bit of anthropomorphism if you ask me. I got most of mine from AA.
males develop strong yellow fins but I have one that has more of orange fins
having 20 in my 75 gallon has been my goal for a while.
-as adults they don't school so I have a lot of tiny fish swimming around my tank doing their own thing
--scale, even from 10' away I just have some pale yellow fish in a big tank
---I am of the opinion you either have a dwarf puffer tank or you don't (other fish aren't safe, my rcs population is dwindling...)
----my wife thinks they are boring, cute but boring
What I really need is a basement and have a tank set up just for puffers and another tank with 'pretty' fish for the family.
But that won't be for a while.
my first batch was 12 puffers special ordered. all looked great in the bag, acclimated to my tank over 15 minutes. a few days later all were dead except one.
next batch were from AA, 10 of them. slow acclimation over 30 minutes. all still kickin months later.
If anyone is interested I decided, with the wifes urging, to go ahead and do rainbow fish instead.
20L Daughter's Tank: 2 Bolivian Rams and Threadfin Rainbowfish
40B Inlaws Tank: 4 Bolivian Rams and Guppies
75 Main Tank w/ sump: 5 Glossolepis pseudoincisus, 5 Melanotaenia boesemani, 10 Melanotaenia praecox, 5 Melanotaenia lacustris