I have them. I keep them. I LOVE THEM!
They are so goofy and funny. They live in the top half of your aquarium... I bought them because I have a 15G Column in one room, and the Corys are on the bottom, the Tetras in the center, and I wanted something on top.... so I got these.
I love them so much I bought more, and moved them to the main tank.
Their color in the stores is NOTHING like what it will be when you get them home. Black tank back, black substrate and they get vibrant - with their yellow ridiculous pectoral head-fins waving around and their 'forked' tail wagging... they're a blur of commotion - always moving, always tight, always beautiful.
I had all males until yesterday. There was this one fish in with my GloLight Danios... but it wasn't one of them... it kinda sat by its self all the time. I was in my LFS yesterday, and he just got in males and female Furcattas.... the mystery fish is a female!!
So I put her in with 11 males... OMG... insanity. I went back to my LFS and got a couple more females. The boys are all super active... more than their general hyper self.
I'm not looking to breed fish - No interest at all. But the behavior change was palpable when the ladies were added to the gang of boys.
I love these fish.