Greenish slime i think?

[ddc0715]

So I have noticed that when I does phytoplankton (the green stuff) I develop a greenish kinda slime in the corners and edges of my refugium. Not sure why or what this is, but I stopped dosing it and went to phytoplankton gold for awhile,an did not develop this slimish coating. Can someone explain to my why? Then went back to the green phytoplankton an its back. Just curious.

 

[lapin]

My guess would be the green has something in the bottle that your slime algae/ cyano likes that is lacking in the gold.