i have always been intrested in sting rays and have been trying to do resarch on them but no site has given me a minimum tank size.
i have had people say 75g 125g 150g 180g
i know it depends more on the foot print of the tank
also i would like to keep most live rock in a refugium to give the ray more sand space
i think the only other problem i had in ray resarch is tank mates
no puffers triggers wrasses and large angles(what about dwarf angles)
most sites say rays eat small fish but i allways thought rays liked crustations better
anyways ty for your help and if i could i would buy a ray in a heartbeat