[Frogmanx82]

When referring to turbos, sometimes astrea snails are sold as turbos and they are much smaller than mexican turbos. Mexican turbos are the only snails that I have seen really put a dent in hair algae and I wouldn't put in any more than about 3 of them, see how they do before adding more. Starvation is a problem for them when the algae is gone. You definitely don't want 30 of them. When they die they really stink up the tank and sometimes its hard to tell. You really have to keep up with them and notice when they aren't moving.

Nassarius snails are cool, but they don't mess with algae.

I have about 20 red leg hermits, they are not keeping up with the hair algae in my 90 gallon tank. I've heard i need about 50 of them. I'm not sure I want that many.

Increasing live rock or bioballs won't help. Like jflick says, a place for some GFO for phosphate control is your best bet on adding filtration.