Tell me about your lights. Type, photoperiod, age and type of bulbs, etc.
My candy canes don't like intense light, and dropped heads until I got them lower in the tank or shaded them. I also noticed what looks like a bleached anemone in the background, which can be the result of light shock (too intense light too fast) or insufficient light.
It is a violation of federal law to use this product in a manner inconsistent with its labelling.