A Scopas Tang will help, since hair algae is part of it's diet. Combined with manual removal, and improved husbandry practices, you will get out of this mess. Manual removal works because when you are algae, you are what you eat. Their most concentrated food source is right there in the algae.
One way to justify getting an RO/DI setup is that you can add a separate reservoir for you and your family's drinking water. It's an investment in your family's good health, as well as your tank's. Worth it.
One way to justify getting an RO/DI setup is that you can add a separate reservoir for you and your family's drinking water. It's an investment in your family's good health, as well as your tank's. Worth it.