Tank raised can take to anemones just as well as wild do in my experience.
There are some things that can help, but like others said, it's never a guarantee. Some or more humane than other:
1) shine a flashlight at the anemone when all other tank lights are off. It can help to have all lights in the room as well
2) feed only near the anemone
3) place a picture of a clownfish in an anemone on your tank
4) chase the fish with a net into the anemone (this is the only method that has ever worked for me personally)
Keep in mind that very young clownfish, especially those that are tank raised can usually not handle the sting of an anemone and will avoid it until they are more mature.
For me, I place an anemone in the area that the clowns hang out in whenever possible. If they start hosting a euphyllia sp. coral (torch, frogspawn,etc), then you'll usually have better luck with sn anemone. I've found BTA's to be the easiest to get to host a clownfish. My tank raised ocellaris started out with a candy cane coral, then a torch, and finally got them into a green bubble tip. Once they went in, they never left. I've moved them to different tanks and they still find their sermons again.
**If you use the net method, DO NOT hold the fish into the anemone. You want to coax them towards it, not harm the fish.