Totally agree that GHA does feed off it's self by trapping waste - I will start blowing off rock effected (just one big one and one small one) It's not over taking the tank just looks bad in spots.
some great observations and thoughts.
Reading from aquarium corals - by Borneman
Average coral reefs tested NO3 - .25ppm
Average PO4 - .13ppm
Page 396
Algae growth in relation to nutrients and grazing
Low nutrients = coral growth (high grazing) filamentous algae growth
High nutrients = coralline algae / macroalgae
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