Do you guys have to put the frozen right in its face? or does he go to it on its own?
LFS sell the transparent acrylic thing, feeding prong. The fish is supposed not to see transparent objects in the water. The thawed piece of the frozen food - not too big, not too small, and try different food - is attached to the sharpened end. Movements, imitating the live prey, here and there, back and forth, should be convincingly enough for a lion to jump and gulp the piece. I was successful fisher of the wild fish, but not good enough to convince mombasa.
Because of gulping, the method was improved, the feeding prong was replaced by thin transparent rigid acrylic tubing (from LFS) with piece of transparent fishing line, going through it, free end ~4"(10 cm). If the fish puts itself onto the holding device during gulping - the fishline will be easily pulled back from the top side of the tubing.
Other fish ate from this device (but not from the prong), except the lion.
For some people, splashing food at the surface helped.
The food with both eyes visible, helped too, body can be cut to the size. Starving fish up to 5 days helped some people too.
For others - putting the thawed piece of mysis shrimp cube (or piece of krill) into the fishing net, together with live ghost shrimp, or separately. Lion is accustomed to eat from the fish net - may try the other piece.
For my volitan worked another thing - just dropping pieces into the tank - all other fish eats, he started to eat too.
Links:
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Now - entertaining part, old photos of my lionfishes, ready to eat:
The hand is not mine - I'm with camera
