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Originally Posted by kwc1974  Yeah, I was always leary about these. When you watch these the mouth opens differantly then the "red neon" more forward like a preditor as oppose to the downward feeding habit of the red neon. |
I knew it, remember us sitting watching these little guys at HAW? Glad I pegged it right, was dying to bring some home until I saw one open its mouth. So cool, but most gobies are predators - you have to wait and watch them open their mouths to be sure.
Predator gobies have forward facing mouths that open wide, surprisingly wide, almost like a killie's mouth.
Algae eaters have a mouth like an Oto, downward facing round shaped mouth.