I run a G4 skimmer on my 12+ year system, I also gave a 30 gallon tank with just fish in it with no skimmer, the 30 gallon has algae but no corals so who cares.
The 12+ year system has corals and when the skimmer doesn’t work the slime appears, this I know.
Skimmer yes
The 12+ year system has corals and when the skimmer doesn’t work the slime appears, this I know.
Skimmer yes