Algae bloom issues

[Cbones1979]

Just started getting patches of algae recently. I fun a fuge w chaeto in my 20 gallon long and have a second filter with sponge and away clear media in it.
here are my last readings

here is the algae

these are the worst spots.
I can keep nutrients low but not sure if that will kill this stuff. I have some pitho crabs coming next week that should help. H2O2 help? Bac

 

[andrewey]

Have you seen this video? I would check it out

 

[Cbones1979]

Have you seen this video? I would check it out

Yes. Very weird how this exploded. Think my chaeto was dead for weeks and the algae in tank took off

 

[Cbones1979]

Got 3 pitho crabs

they ate some but not sure how they will get all of it before it grow. Going to lower feedings to every other day and hope to starve it

 

[Cbones1979]

I can’t pull it out fast enough. It’s in such small patches I can’t grab hold of it. Anyone have success with an additive?