Arggh Thread Algea

[Puffer punk]

hey everyone

i have some thread algea not alot but enough to tick me off!!!!!! sooo im wondering how do i get rid of it? my levels are
ph 7
kh 7
gh 3
N02 0
NO3 10 ppm
PO4 0.5 ppm
Co2 22 ppm

any help would be good thanks

 

[zig]

Your CO2 level is to low if this is a highlight tank, aim for 30ppm or you will continue to get hair algae.