any idea how to prevent this thing from happening ? fighting with these green algae stuff for few months but still cant get rid of it.

the aquarium is located at outside of the house. got a bit sun shine during the day but i had tried to cover it with woods and clothings to prevent this from happening but it seems didnt work out that well... Im currently using FILTRO 2.0 filter that LFS claim 100% to remove algae, all in one solution..........