Am stands for ammonia...probably THE most important parameter to watch with rays. Any ammonia=dead ray. While your at the LFS rehoming your kissing gourami pick up an API freshwater master test kit. This is a must with ray keeping. There are a couple other things you need to be aware of with ray keeping, they are not like caring for any other fish. Heater CAN NOT be in the tank. Your ray will burn it's self 100% for sure. Rays eat WAY more than any other fish their size. Small rays eat at least 3 big meals a day. If your ray isn't eating so much that it scares you, it's probably not eating enough. Try earthworms. Ok, that's all I can think of to get you pointed in the right direction.
