Green Algae

[Petercar (RIP Dec 2017)]

What causes the green algae on the glass ? I getting green. B4 it was always a dust red color and all I did was change to high capacity GFO

 

[Sewerat]

Is it green algae or green coralline? Green light algae I have always found to be caused by light heads poor output

 

[Petercar (RIP Dec 2017)]

It's a green algae. On front of just the powerheads never behind them my lights are LEDS

 

[Petercar (RIP Dec 2017)]

I have the vertex Rodi unit and media was swapped a few months ago. It was still reading 0 when I swapped them out there's a carbon bag in the high flow area of sump

 

[heath]

what is the location of the tank, my 75 g gets it but, it also gets natural sunlight..

 

[Petercar (RIP Dec 2017)]

It's at back wall same spot as for last 4 yrs it all started green after switching to high capacity GFO and I notice no more bristle worms And no aptasia but stuff is growing faster now to