What the hell...? It deleted my post!!
Anyway, I was saying:
I'll try to grab some more pics, but as you probably know, these things aren't exactly eager to pose, haha.
I'm not sure about the chestnut/viper right now. It literally is the size of a standard ballpoint pen. Definitive ID is probably impossible at this stage but hopefully that changes in a couple months.
A quick note though, I have both eels housed with various crustaceans (peppermint shrimps, a couple different kinds of hermits and an emerald crab), a seahorse and some snails with no problems. That said, I imagine they'd take small fish like gobies pretty handily.