Fish are actually really smart. Some people think their intelligence is similar to a cat or dog despite being so small (well not for koi lol). Baby bettas are quick to learn who feeds them, male bettas can become depressed once removed from fry, fry can become depressed when first jarred, some are shy, some are hyper. Each fish is different and each has the potential to be rather smart.
Who am I? Well I am a Junior Member of the International Betta Congress and a breeder of white HMPKs, red dragon HMPKs, black/red dragon HMPKs, metallic multi HMPKs, blue masked HMPKs, and now multi color HMs. Soon to add black HMs. I will be showing in New Breeder class in fall of 2012.