What would a good starter ray be a teacup or a motoro? i recently had a "teacup" stingray but he unfortunately passed away. i did all the research i could before bought him but i guess i messed up somewhere. i want to give it another shot but this time i want to do it 100% right i don't want to kill another poor stingray. can anyone give me advice on the easiest stingray to take care of