Hi Tony, good to hear you are having success with your imitators...or at least a start! Dont be surprised if it takes them a little while to get it right. As far as them being eggfeeders, Bill, you hit it right on the head, but, I would disagree with you on the issue of the neonate size. The fattest thumbnails ever come out of the water after being fed the mothers eggs, in my experience, however it often completely stops the pair from breeding while they raise the tadpoles, where as if you pull the eggs/tadpoles from the tank, the female will continue to lay fertile eggs.
Imitators in particular like to hide the eggs, and will keep moving around the tank after they catch on that you are taking their eggs, so I try to keep the bromeliads in their tank loosely mounted, so I can pull them and dump them if I suspect they are feeding a tadpole or two.
Best regards, and Happy New Year!!