The white drum, possibly source of ammonia.View attachment 1315874
Lights were over grown with algea reducing output.View attachment 1315876 Diffuser bar at 30% flow.View attachment 1315878
New bar full flow.View attachment 1315879
Green slime algae coated screen, except lower middle spot, lights not powerful enouph from scum build up. View attachment 1315875
One week of growth, the lights got a little blocked, towards the end of the week.
I brushed off the loose outer layer, to let the more fibrous turf algea build up.