Looks like something that T1KA had going on at some point. Maybe some expert can chime in here, doesnt look bad tho. Maybe its just normal, but mine doesnt do it.
Looks like she is just "blowing" sand. She might of smelted a place were food landed and is trying to find it.
To me it looks like she's spitting water . All my rays have picked this habit up, my big breeders in my pond will spit water over the edge to get my attention for food.your ray looks very healthy. Nice mm!
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