So yesterday I received an order from aquatic clarity. In that order were 4 Apistogramma Panduro, They were small but they looked good. Today I found all four of them on the floor dead. I tested the water and it is good. There was a lid on the tank but not sealed to the back. They were in there by themselves. Any ideas?. I can see one of them but all four. I just don't get it. Could it be that much bad luck or could something else be wrong? Any advice would be helpful.