I got a firefish goby yesterday and acclimated him then added him last night. I came to check on my tank this afternoon and I saw him swimming around in the bottom-back of my tank. Then I came to check on it again a bit later and can't find him anywhere. Haven't seen him since. I've read that they dig burrows, but I can't find a burrow. I want to feed him but am worried that he won't come out. Also, I have two clowns and they love the LRS nano reef frenzy that I feed them. Do you think the Goby would eat it as well?