My mom wants an aquarium.

I vote for dwarf gourami, as well. Decent sized fish, colorful, fairly hardy, tons of personality and a good fit for a 15g tank.
 
Good idea, she likes the ones in my 10 gallon. Any hints on how to get them to behave around fellow members of their species? there are two (male and female) in my previously mentioned 10 gallon. No torn fins or anything, but they are annoying and a bit stressed.
 
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