My blue pair (m&f) eat something that I can't see that is growing on the rock all day long. I too have not actually seen them eat what I would call "pods". However, they eat a lot and are looking healthy and whatever it is they are consuming often creates a smoke-like puff from their gills when they chew it. The article author said his eats once every 3 minutes, I would say with mine it seems more like every 20-30 seconds depending on where in the tank they are.
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Greg
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