Paul:
can i ask what spieces of lion it is??
i ask becuz P Volitans and P Russels will ween over almost immediately. The med sized lions (e.g.,antennata and radiata) are more difficult, but do-able. The dwarfs (dendrochirus) tend to be problematic in that you need them established in the tank first, then they'll switch over.
If you email me directly i can send you my lionfish info sheet which has lots of husbandry tips including how i ween mine over, and it might help.
In cliff note form:
Like the rest I starve the lion for about 5days then i use a clear feeding stick and impale either a silverside(w/ an eye) or a mid size shrimp also w/ an eye. I move the food item thru the water away from the lion but in its view, when the lion rushes over to check it out, move the food item away.The lion will key in on the eyeball. After you get him interested allow the lion to take the food. Don't worry if he doesn't. Remember your job is to convince him to eat this stuff, he has no clue its food.
If he doesn't take it try again later. Keep in mind a hungry lion is a brave lion.
W/ most volitans and russels they will take anything which looks like food in the water column and usually just require food, no convincing
HTH
frank
[email protected]
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To see my 180 gal tank of lions:
http://www.marshreef.org/members/fmarini/index.htm