I hve a stars and stripe that seems to have quit eating - the water is good and balanced and salt is great he just seems to not be intersted in eating - is this normal? please help - charlie has got to be hungry - when he does eat it is krill, squid (does not like very well) and raw shrimp...... there are no other fish except and snow flake eel but it has not stopped him before and eating - he use to eat very well - "I am concerned"