Jr. tanks tend to have initial hair algae outbreaks. After things establish, then general good husbandry keeps them to virtually non existent. What I meant to say, was it ok to battle this initial series of outbreaks with a sea hare acceptable?
Im not anticipating having an overall problem with hair alga in the long term, just the initial 3-6 months of the tanks early stages. If I have to wait several months before introducing my first batch of sea horses to the system, I honestly don't mind waiting. Nothing good ever happens fast...