These a Hawaiian Dragonface Morays, very hard to get, had 9 total in 2 220gal tanks. Just converted 1 of my 220 for fish water, thought I'd get a Asian Aro, only to find out they're not legal to own have to settle on a Jardini
I use power compact lighting, algae sometimes gets out of hand the snails keep the glass clean, I don't think snails multiply as fast like in fresh water, or a least they never did in my tank