Can anyone ID this algae please?

Theres some green slimy looking stuff and also some greyish string like algae.
I've been doing 20% water changes every other week and I got a skimmer and started dosing nopox which has reduced nitrates for 20 to 10, I'm also running mostly blue light instead of white.
I use a toothbrush to scrub the rock but this stringy grey stuff doesnt seem to come off and the green is coming back
 
Theres some green slimy looking stuff and also some greyish string like algae.
I've been doing 20% water changes every other week and I got a skimmer and started dosing nopox which has reduced nitrates for 20 to 10, I'm also running mostly blue light instead of white.
I use a toothbrush to scrub the rock but this stringy grey stuff doesnt seem to come off and the green is coming back
Hair algae. Comes in all colors. Check your NO3and PO4. Suction it out, scrubbing will only spread it. Reduce lighting, feed less. Be patient. Will take time to eradicate.
 
Did you start with bare rocks? How long has your system been up and what's your bioload?
 
Its a type of hair algae. Trochus snails and possibly turbo wiill eat this. Additionally, it is generally due to elevated nitrates and ammonia and lighting.
Reduce white light intensity and add a small daily dose of liqwuid bacteria such as bacter 7. Liquid vibrant would also destroy this stuff.
-Is your tank by chance at or near a window?
-Are you using RODI water or tap water from the faucet ?
- Are you running a canister filter by chance ?

Raising mag levels to about 1450 is said to work But makes me nervous.
 

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