I have mixed feelings on this. My spider male rarely refuses food. He used to eat even when he was in shed and he's super sweet. My spider female can be very defensive when she wants to and is just an okay feeder. She refuses about 20% of the time.

My two bumble bee females are like night and day. One female will eat anything and has grown really well with me. The other one is about 50/50 on if she feels like eating. For a while she was taking f/t like she was going to eat it and then she never swallowed it. Both of them are fairly sweet though.

My best feeders are my fire, ph caramel glow and lemon pastel. All of them will eat whatever I offer them any time of the day. My fire was crazy to feed for a while. If she downed her rat before I finished feeding the rest of the rack or if I didn't feed her first she would start striking at the side of the tub until I gave her a rat.