frag in sump was a pretty bad idea and since then I'm having some GHA growing on the frag plugs. now moving the plugs to the frag tank and hopefully to fight this GHA out with proper treatments.
Bristlerooth are much better for hair algae. Tomini or kole are both good. Tuxedo urchin is good too if glass tank. Can dip plugs in hydrogen peroxide to kill it too. Not corals tho. Plugs only.
Gave up and removing white egg crate from the frag tank, gha is growing all over the crate but no where else. Going to use sand to settle the plugs. But my black crate doesn’t catch the gha plague.