I've only had my retics since febuary... and already have invested in food more then i bought my 2 at, that not inclueing electric, water, misc stuff. ... it's like breeding most larger animals... upkeep makes it lucky to break even unless you are breeding larger volumes of quality animals.. and this is alot harder to do then it sounds. I would wager 99% of the ray breeders at least in the US are "Hobby breeders" they do not make money on their pups.. but are lucky to break even or just help pay for their pets. The only fish i own that costs more to maintain are my spiney eels, they are bigger pigs then my rays atm, but my rays are juviniles... I expect their feed bill to go up.