Live food is a bad idea. Firstly, the live foods typically available are freshwater fish and
ghost shrimp. IF your new fish refuses to eat after a week or two, these can be used to stimulate a feeding response, but weaning them over to frozen is your best bet.
I had a customer insist that his fish wouldn't eat prepared foods... I let him "starve" the fish for a week. I walked in with some freeze-dried krill, which isn't the most inviting - but as soon as it hit the water, he ate it without even looking to see what it was.
IF you need to use live, gut-load the feeders with something healthy - enriched brine (not plain brine... omega or spirulina enriched), Selcon, Zoe or Zoecon, vitamin c and such, and once the feeder eats that, feed immediately to the lion. That way the lion will absorb the good stuff and not just the empty calories from the feeder fish.
When an ambush predator like a lion is hungry - it is amazing how fast it can move to eat its share.
Jenn
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Member of the "J" Crowd & the BRW Crowd!
LFS Owner:
Imagine Ocean

Just keep skimming, just keep skimming, just keep skimming, skimming skimming! What do we do? We skim, skim, skim!