Hello everyone. I bought a baby reticulated stingray(4 inch disk) roughly 1 week ago and have been having issues getting it to eat. I have tried earth worms, frozen bloodworms, freeze dried krill, shrimp, feeders and it doesn't even attempt to eat. I use a feeding stick to hold the food out in front of the stingray, but it will just lift its disk up acting as if its going to eat it but just swims away. I have this stingray housed in a 180 gallon with 2 Fluval FX5. Water is; PH 7.6, Nitrite 0, Ammonia 0, Nitrate around 10-20, Water Temp 80 degrees. Tankmates: another reticulated stingray(5 inch disk, this one i have no problem feeding) and a jurunese catfish(6inches long). I am concern because the stingray is getting smaller as each day pass by. Please give me some helpful information as to how I can get this stingray to start eating.