I can only seem to keep these betta for about a year. I've heard of some living up to 3 years! I'm not having too much luck in that regard. They probably loose a good year because they are scared of the cat. Senpu really enjoys watching them, but before long... he gets really worked up and tries to catch them. He never sticks his paws in the water, but it's enough to scare the fish and make them hide. He does have a hiding place!
Ahhh.. I'm probably mistreating the poor fish. Mr. Fishie was very pretty.. and so is Senior Pescado. I haven't decided if I'm going to get a Sakana-san when Senior Pescado's time is up. I may take a break from the fish keeping, even if it makes Senpu depressed :X