UV Sterilizer

I haven't heard that UV sterilizers do much for macroalgae, and I don't see off-hand how that would happen. They can be useful for phytoplankton blooms.
 
I used a couple of emerald crabs to get rid of the bubble algae. Some people do not have much luck. I had a horrible outbreak and 2 emarlds and 3 weeks later it was almost all gone. Not sure what to do with the hair algae other than watch water parameters, keep the skimmer running, increase water changes for a while, and maybe cut back the lights. You might also check your water flow and make sure you have enough cleanup crew.
 
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