Your pond should be polluted with fatheads of all sizes right now. If you stare at a patch of water, where you think you see no fish, you should see very small fry, at least once the water temps are over 70 degrees.

I wouldn't think you need to add more forage at this time, but if money is not short, it shouldn't hurt anything.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."