Tank is looking good Joe.
I have been fighting with bubble algae too. I would try to remove as much as you can before it spreads. Unfortunately, it is a low nutrient algae so even if you control phosphates, light cycles, and manage waste export, you will still need a herbivore (or you will need to act the part). I chose the latter as means of control. I typically use tweezers to scrape under the spores while I am siphoning during water changes. Try not to pop the bubbles as this is how they spread spores. If you do on accident, it is not the end of the world, just vacuum the area a little more. Make sure you remove the entire algae skin otherwise the algae will grow back. It's a tedious process, but it's working for me.