[mluntz]

Good morning,
I have some green hair algae developing. It is basically limited to one rock in the tank. Unfortunately it is a large base rock that I am unable to remove from the tank. I will remove as much of it as I can by hand.
Questions:
1. Has anyone ever applied something to the GHA in the tank via a syringe to remove the remainder of the algae and if so what did you apply?
2. Can I use a wire brush to scrape the remainder off the rock in the tank without having to worry about it spreading throughout the tank?

Thanks