:thumbsup: gotta agree on a heater- my rooms are constantly at the same temperature year long. I always added heaters when breeding my bettas- and lamps to keep the air warmer right above the surface for the tiny babies or they would have died from the cold air draft if there were any.
PLUS forgot to add to my long explaination:
bettas especially the male splendens with large/showy fins being able to handle current that electrical filters are going to be dishing out- even the ones run by airstones in a small tank- it creates currents or disturbances in the water. The guys don't like their bubblenests being constantly wrecked and will be trying to look for new locations to make the bubble nests being stressed out...they work very hard maintaining their bubblenests 24/7
they have long/showy fins and will be working twice as hard compared to other streamlined fish or females- thats added stress to those male bettas. They're simply not evolved for currents at all hence why they're in still water pools. Their bodies are not simply created for that.
