The best way is to carefully remove the bubbles intact. This is a slow process over months. If you break them... they will continue... emeralds will eat the algae that turns into a bubble... not the bubbles themselves. water changes are a good idea if you break them... but be prepared for even tighter clusters of small bubbles if you break them. removal may be eaier outside the aquarium, however, I like the LIVE in live rock. Good news is... as Coraline grows in your tank, it will cover, and start to over take the BA... makes the bubles eaier to gently wriggle out of their holes.