as anyone else seen these fish on sale before. i know next to nothing about saltwater and i saw a fly gurnard on sale at my LFS for $130. coolest freaking fish I've ever seen for a saltwater tank. it had these two huge wings and would fly around the tank, then, it would tuck in its wings and literally walk along the bottom. can anyone tell me the requirements of these fish? the guy working there said you would need a 180 to keep one for life.