No feeding Lou, however I have had yellowing on the bottom leaves, also lost a few too..
Mrs ajn says the yellowing could be over/under watering could need a bigger pot or might need some sort of feeding..
I just hosed them over top to bottom and under the leaves, soaked them till water came out the bottom as I still water from the top ?..
tbh I’ll be chuffed if any of us get even one flower..??????????????????????