12 gal cube, about a year old. Inhabitants are a bunch of zoas, a few shrooms, some Acro & Monti frags, and a single Spotcinctus Clown. I lost another one during the storm. Filtration is an XP 3 canister and a Tunze 9002 skimmer.Light is a 150W halide, 14000K bulb. It was hilarious this morning! The nem moved out of its little shelter overnight and took up residence on top of a rock almost dead center in the tank. I couldn't have placed it better if I wanted to. When the halide came on the nem reacted instantly, opening up in what looked like a time lapse. Then at a certain point as the light got warmed up the nem realized something was wrong, reversed the process and crawled under a rock! It looks pretty good under there now, it's even opening up a bit. It was living in a mass of chaeto in a fuge lit by PCs when I got it. It's definitely going to need a while to acclimate to a halide a little over a foot above it!