So did you ever have cyanobacteria and if you did , did the scrubber help rid of themOk, here are some pictures.
1) opening for the light.
View attachment 173935
2) scrubber chamber, before the overflow pipes are in place,
View attachment 173936
3) The top part of the scrubber
View attachment 173937
4) The part that hold the algae screen
View attachment 173938