I had my SW ones a little over 2 years. They where also one of the larger species, They took large amounts of care and dedication. I've been tempted a few times by the few times i've seen the fw ones availabe, preping,planning, and luck. I'de prolly set up a tank much like a mini ray tank. shallow but wide dimensions. plant it very well for an extended period of monthes and establish perhaps a cherry shrimp colony in the tank to suppliment their diet. scuds might work, they just don't seem to replenish as quickly as shrimp do. effinately be a project in the works, and you'de liekly fail a few times before being able to keep the pipes happy.