Our local zoo recently opened a small aquarium. (Small is a relative term, I guess... it consists of three buildings, but it's mostly smaller marine life. No seals, dolphins, or very intimidating sharks. There are smaller sharks, and stingrays you can touch.)
I thought I'd take the opportunity to sharpen my skills at low-light, non-flash photography. The place was loaded with kids, so a tripod wasn't practical. Handheld had to do - luckily the displays for the most part provided just enough light to work by. I used a lomo effect on this one to highlight the blues and greens behind this little seahorse.