So i just bought my green terror the other day ,well about 5 days ago. And since ive put him in my tank . Hes been pooping long clear threed like feces. He seems to be acting normal with his swimming. He seems to stare at the heater a quite a bit though? Seems interested in food . Stares at it,and chases it but doesnt eat it. If i soak it in garlic he will put it in his mouth and then spit it out right away. His stomach seems to be a little sunken. But thats probably from not eating anything ill give him ,i dont know. He also has some kind of mouth spasms. Like he has food stuck in his mouth? He seems to have darkened a bit as well. Im worried ,i really like this fish. Please any help is appreciated.