I have 7 Marble crays right now and was wondering what you guys feed these guys. Mine are eating but I haven't found anything that they really go after so far.
idk man im in the same boat as you.i recently picked up an electric blue.i put feeder guppies in there and he hasnt touched them.so im interested to hear also.
Hikari Sinking Carnivore Pellets and Crab Cuisine mostly with a treat of the Massivore Delite. I feed them a wide variety of foods but this is the standard diet for all my crays. My Marmorkrebs also like to eat plants like anacharis so I toss that into the tank once in a while. They will eat canned green beans and frozen de-shelled peas too on a regular basis.