I'm curious to see what experiences betta keepers have had with keeping bettas with (appropriate) tank mates. In the poll, when I say 'flare easily' I mean they'll flare for things like mirrors, videos, or odd objects (like pens! Why are bettas so alarmed by pens?). 'Tolerate' means they didn't try to attack or eat anyone, and didn't show signs of stress or distress. Please feel free to expand on what tank mates you've tried, tank sizes and set ups, and just what worked and what didn't. I'm personally interested in whether this can be used to figure out if a betta is more or less likely to go after non-fish roommates like snails and shrimp. I suspect it might not, since other fish might be seen as 'threats' and shrimp and snails might be 'food', but I would be very happy to be proved wrong!