Ive had my female retic for over a year now, never had any problems at all...ever...and it was my first ray... I have her in a 150 with 2 canisters, do my water changes about every 2 months or so, feed her twice a day...retics arent hard, just have to do your homework and dont buy unless theyre eating...i also bought her at about 4 inches and over a year later shes only about 6-7 inches, so they dont grow very fast...dont be discouraged, buy it, you wont be disappointed...they may not be as cool as motoros or leos, but at least you can say "i have a stingray in my tank" lol.