Looking at the pictures, you really have a lot. Ouch. Sympathies!
I notice it looks like you have quite a bit of algae on the sand bed, and non-coraline algae on the glass.
Given all that, it implies you might have a real nitrate problem.
I would suggest testing Nitrates carefully, and consider how to reduce them.
Otherwise, all your efforts removing the bubble algae will be very temporary, which will be very frustrating!
I notice it looks like you have quite a bit of algae on the sand bed, and non-coraline algae on the glass.
Given all that, it implies you might have a real nitrate problem.
I would suggest testing Nitrates carefully, and consider how to reduce them.
Otherwise, all your efforts removing the bubble algae will be very temporary, which will be very frustrating!