Glad to be back in the hobby. It would be interesting to see which clown pair you purchased. I picked up a pair (about 3-4 inches) from Upscales back in October 2023 and brought them back in January 2024. The larger black female was overly aggressive to my 4 new additions. So, I picked up a black ice clownfish that has been doing well with the rest of the tank.
As for the candy cane, I had a similar problem with them getting too much light to the point they were almost gone. I placed them on the sand bed away from direct light and have been spot feeding them mysis shrimp. They seem to be coming back, but it will take time.