Hello everyone! I recently had my 4 year-old Snowflake Moray Eel jump from his tank while I was out of the house and hours later, he had suffocated and died
. The eel was sharing his network of caves with a Coral-Banded Shrimp, it's surprising, he never tried to eat her. So today I went out and purchased two mature Engineer Gobies, a Cleaner Shrimp, and a Emperor Angel. I know gobies love to tunnel but I just can't seem to get mine to go for the rocks, they seem much happier swimming around! The rocks are cave-like and the tank is about 3 inches of sand, am I doing something wrong? Any advice would be really helpful! Thanks.