Spirulina!!! I can’t kill it!!

[Msteven1]

This video is to show the Spirulina outbreak I’ve battled for weeks. Seems worse. I have put under microscope and it’s 100% spirals. Double dose of chemiclean, two times consecutively hasn’t killed it. Out of ideas. Help

 

[Spare time]

Try API algaefix. It should work on spirulina.

 

[Msteven1]

Marine algae fix does call out spirulina. I didn’t know. Thanks!