I got a double tail red male betta and light yellow color veil tail female last weekend and instead of put in them in small tank separated (bettas live in rice fields with thousands gallons of water), i decided to put them in a 20 gallon long tank with neon tetra, albino corycat, ottos and minows..3 days later they were so *busy* and caught them spawning, it was too late for me to put a separator to keep the other fish away, but the male is doing his job to keep the bandits away whenever they get close to his nest, just like the easy street movie from charlie chaplin.
here is a short videos: http://www.youtube.com/watch?v=iXRBpEy4aWA
http://www.youtube.com/watch?v=A5-nHARRFUg
here is a short videos: http://www.youtube.com/watch?v=iXRBpEy4aWA
http://www.youtube.com/watch?v=A5-nHARRFUg