Surim

Thank you...I will try getting rid of affected leaves ..hope this will ultimately stop it growing.

I changed my aquarium looks with new plants and aquarium grass. It is now getting algae as in attached pic..I am not familiar with this algae. Looks black/brownish and bushy..Can you please suggest the solution..I have kept timer for light so it runs for 4 hours in morning and 4 hours in evening