Ah, good to hear about the lightning.I ended up returning the lightning clownfish and didn't get a fourth. Didn't want to chance any fighting among them. Everything has been going well now! My firefish still likes to hide for days, but I'm hoping he'll warm up and start hanging out in the open in the future
Anecdotal, I've had my firefish for about 6 weeks now and it hides 90% of the time. Only comes out if it smells food. Bummer, but that's the way it goes.