Need help green boring algae??

Hi all,

I'm wanting some advice and help with a lime/neon green algae that I've had for a while that's slowly taking over my substrate (fine coral gravel) and the white exposed areas of my rock work..I've had no joy on other forums and recently found a thread on here describing something similar..I've researched ostreobium and green boring algae and there's not a great deal of info out there. Has anyone any advice or experience to point me in the right direction. Many thanks