Recently started with this algae on my glass. It began as a thin, dust like covering but has since also developed this lightening strike like pattern. Tank is a year old and has been completely stable, with nothing added since some gsp back in March. My parameters were n03: 10 and p04: 0.01 but these have now dropped to 2 and 0 respectively. PH has remained stable at 8.3. Current stock is 2 clowns, 1 hermit, 5 nassarius snails. 110l with Tunze 9001 skimmer (Berlin method). Any help would be much appreciated.
