I offered my P. bicolor crickets(very small, but not pinhead...). The Bicos are approximately the length of a quarter(svl). These guys simply dove on them. They are WELL fed, and still, showed great enthusiasm! I was quite surprised at how pursuant they were of the crickets. Once they had a bite, it was no going back! I fear they will not care about FFs! Just wanted to share! These were dusted with the Vit A blend.