My tilapia in my pond were nibbleing my back while I was in the pond doing some work. One even was tugging on a flap hanging from my trunks...
They have eaten evey little bit of every thing and are hungry.
this is off topic , but I went from manually removing FA in the spring to having to feed them as I see some that are looking skinny becuase they have eaten all the natural food the pond offers. (This is my forage pond with no predators)