Nitrates: 5 ppmIt’s normal but needs to be kept under control otherwise it can get out of hand
What are your ammonia, nitrate and phosphate levels
How many hours are your lights on
Does the cleanup crew avoid that area
Do you see trail marks etc
Phosphates: 0.13 ppm
Ammonia: I don't test
Lights are on 7.5 hrs with a ramp up/down of 1.5 hrs on so 10.5 including the ramp up/down times.
The Goby and stars do avoid the area.