thanks guys , sharkatak , u say it helped get rid of hair algae ,im always fighting that. thats where im thinking of h20 movement. im as well considering a uv sterilizer too help rid the algae
the levels are fine ? which i thought my p04 would be sky rocketting but its 0ppm and so is nitrates

i just keep scrubbing the algae off 4 days later it starts coming back . ive cut the light back a bit (1hr blue , 8hrs both , 1 hr blue) it slows it down .

not really keen to add anything till i sort it out or unless theres a critter out there that will make me happy and eat all that crap for me , if there is tell me im going shopping ...