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!