rowaphos or GFO

[Rejine]

I had a big success with rowaphos when my tank had a big problem with phosphate and we're talking about different type of algae bloom (cyano, brown diatoms, hair algae, and bubble)
And everything disappeared within 2-3 weeks use of rowaphos and activated carbon mixed in a TLF reactor.
I see some coral growth too

[Amadod2]

i was looking into phosgaurd, have any of you guys tried it???