I don't know if my experience is an exception for the kind of configuration that I have or if it's because I have the kind of configuration that I have that the two of them are able to thrive. I also have a Leopard Wrasse which is a fish that's reputed to consume pods. It takes other foods very aggressively like flake, Cyclopeeze, chopped Mysis, etc. but the Mandarin and the Scooter Blenny don't. So, as far as they are concerned, there has to be a sufficient supply of pods. Oh, and by the way, I have two Sand-sifting Starfish in the tank. They're also reputed to consume pods but, I have to say, that despite the popular wisdom, I don't believe that they do.