IME, (and I have way too much experiene with bubble algae), an emerald crab will help once you get it under control, but unless you have an army of them, they cannot do it themselves. Manual removal and nutrient control are how to get on top of the problen yourself. I use a siphon tube with a filter sock wrapped around it to get as much as I can each and every water change. Just put the sock in your sump, start the siphon going, and get to work on it. When you are done, do a water change. Repeat weekly for as long as needed. Get a reactor going with GFO (granular ferric oxide) to remove the phosphate from the water and be careful about over feeding.