I have had a pup moto ray going on about 3 weeks now. He has eaten little to none since I've had him and I believe he is dying now. He has been in one of the corners of the tank for a day now just pulsing his disk.. by pulsing i just mean its waving like when they swim but hes just on the ground not going anywhere. I have tried feeding, krill, market prawn, worms, silversides, frozen bloodworms, shrimp pellets, brine shrimp. I dont think hes gonna make it.... i dont think i want to keep rays anymore as this is my first attempt