Potter Angelfish not eating

My potter angelfish is constantly picking at rocks and eating algae off of them but Iam worried that wont be enough. He has been in my tank for about 2 weeks now and hasn't eatn anything I put in there. Any advice would be appreciated. Thanks

 

Hmmm I got a Potters about three weeks ago, it was eating frozen food in the LFS which helped my decision. Mine also is constantly picking but also eats frozen greedily. Was it eating frozen at any point? Is it very skinny?

I've never soaked my food to entice fish, maybe others will suggest it and give you some advice.

Do you have any pics of yours? They've become one of my fav fish, here's a pic of mine, would love to see yours:

 

Spread some frozen angel diet on a rock. It should pick at that one, and then be more likely to pick up on eating frozen food.

 

I had a singapore angel once that didnt eat my offerings for almost 2 months! then i noticed my tank was sparkling free from algae growth and looked incredible. fish then started to eat my offerings.

 

I'd try feeding in meaty foods like Mysis or Brine shrimp. Or even cyclopeeze? I have a coral beauty angelfish, and he absolutely loves whatever I give him. What are you currently feeding him?