Unfortunately Freddy, Fu Manchu's aren't that easy. Most dwarfs will accept that method just fine, Fu Manchu's on the other hand generally don't. They just take a ton of time and a tone of patience. What I think the best method is to spear a ghost shrimp onto a feeding stick and feed it to the lion. Do this for a couple of feedings then switch the food to fresh RAW shrimp from the grocery store. That is generally the best way to try and get them converted. Anyway hope this helps and good luck.
