think it depends on the bettas.
my colleague put 2 males into a heavily planted 4footer. both bettas didn't "want to lose", so one died...
P-L-E-C-O-R-Y=M-A-N-I-A!!! YEAH!
FLORENCE, capital of the region of Tuscany, has a population of around half a million inhabitants, spreads on the banks of the Arno, between the Adriatic and the Tyrrhenian seas, almost in the middle of the Italian peninsula. It is a city which bustles with industry and craft, commerce and culture, art and science.
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