Lophiocharon attach their eggs to the male. Check out this page from the frogfish files:
http://www.reefcentral.com/forums/showthread.php?t=613227&page=17
My female tried to eat the male after the eggs hatched. The newly hatched fry are benthic, cannabalistic, and, for the most part, able to fend for themselves. My tank was filled with live rock and a nice mysis population. It was enough for at least one of the young to 2 cm.
As far as frogfishes available in the trade, Histiophryne and Lophiocharon are the only genera I am aware of whose fry aren't pelagic and have to go through metamorphosis.