I'm looking at that algae, and to be honest, it looks like you have a cyanobacteria problem more than anything else. I am not too certain that there is even BBA in there unless this is post treatment. But both that green and red slime is definitely cyanobacteria and without intervening, it will take over your tank and eventually start causing major issues if you don't get rid of it now. Blackouts, increasing circulation and/or medications are some of the things needed to wipe it out of your tank. Do a search on BGA or cyanobacteria to get an idea about how you'd like to treat it. Or ask here if you need help.
Without Algae, death of mankind would be inevitable.