Greeny brown film on HC

[holoublahee]

This tank has been running for about a month and its been planted abobut 3 weeks. The HC is growing well as is the Dwarf hairgrass, but there is a film growing on most of the HC patches. Also theres a lot of green on the rocks. I have 5 amano shrimp, and 6 cherries and 2 ottos and a few snails here and there. I do weekly 3-5 gallon water changes weekly. How do i get rid of the algae film (the green on the rocks isnt too big a deal, but if i can do it all in one swoop itd be nice) without disturbing the scape toomuch.