Algae in my built in filter

[bangkokbandit]

Hi, I have a built in corner filter in my tank, the tank is about 2 months old.

Its been growing brown algae on the glass.

Im not sure what i can do about it.

I was hoping it would grow enough so that it looks black and doesn't let light in.

Would this be ok to have permanent brown algae in the filter.

Another option i thought of is to paint the outside of the tank where the filter is, I wouldn't be able to paint the inside really though so some light would still be able to get in.

I've included a picture below.

Anyone had this problem before?

I know the filter i have is a bit different, not sure why they've used clear glass.

Any help would be most appreciated.

Thanks

 

[bangkokbandit]

Also I will be getting some of those white cylinder things (filter medium).

Should they go in the very bottom, around the pump or should they go under the black plastic bio balls in the upper section?

Thanks