Just got a fish from my LFS. They said it is excellent at eating algae. They called it a "Fallawalla"(sp.?). It is about 4 inches long and looks like a Marine Pipefish. It's really thin and somewhat flat. It has a long snout, but the mouth is a sucker type and is located under the head, not at the end of the snout. The color is white with brown spots/stipes/flecks. I'll try to get some pics. posted, but any ideas on what it might be and where I can check would be appreciated. Thanks.