I have perch and trout in seperate tanks, both did not touch the whole fd shrimps. Maybe the key is to crumble the shrimp. Trout are supposed to love shrimp so I was suprised they did not eat them.
When I fed the shrimp to the perch, the water temps were at 55 degrees and they were not eating as well as they are now in 62 degree water.
