I've been working at this for some time now...
And here is a pictorial diary
Water distribution was poor and screen access was a pain![attachment=2:294j4h30]Bucket_Algae_Scrubber_001.JPG[/attachment:294j4h30][attachment=1:294j4h30]Bucket_Algae_Scrubber_005.JPG[/attachment:294j4h30]
So I tried this and it seems to work.[attachment=0:294j4h30]Bucket_Algae_Scrubber_006_2_.JPG[/attachment:294j4h30]