I feed all my CynarinaStunning
The closest I’ve got in similarity is a cynarina ultra red which I’ve had 7-8 months and I never fed it , if I was trying to grow it specifically I would
Look at them at night few hours after lights out. They are open and trying to capture food. They can slowly decline without regular feedings. They look fine until the day they aren’t
Minutes after lights come on they close up. If it’s lights out and they are extended, if I turn the lights on they will retract in seconds. These are night feeders