Mark Huveneers;3071143; said:Sometimes if your water quality is bad you can get spots, the funny thing is that it is exaclty on an orange spot. I also noticed on one of the pics that the ray has a red spot on underside of the disk.
Check your water.
Water is perfect:
Ammonia - 0
Nitrite - 0
Nitrate - 5
PH 7.0
Temp 80F
I check water condition twice a week.
