AB+never caused algae for me. Been using it at least 3 months. It doesn’t raise phosphates or anything. I wonder why it’s causing algae in your tankI had some decent luck with AB+ for a few weeks, and then came the algae.
I stopped using it for a couple weeks and the tanks started to clear up - then I dosed AB again for a couple days and all of the algae came back.
What’s some good coral foods that doesn’t caus too much algae . I’m currently just broadcasting Misis shrimp