Ok need some opinions or experiences.

My efforts were to mow down some hair algae and bryopsis that has been thriving in my reef water.

Tried Black Mollys = Current too strong they end up in Overflow Box
Different Tangs = Spoiled by Krill (tried starving them)
Molly Miller = Same as above

So I purchased a California Blue Spot Sea Hare munched very well on ALL Hair Algae then MIA after a few weeks
Then picked up an Abalone on FRIDAY ! As of yesterday he is now MIA ! Only 3 days

Could my Wrasse be Taking them out 1 by 1 ?

Inhabitants of 125 REEF :

Kole Tang
Fox Face
Flame Angel
Big Eye Squirrel
Yellow Tailed Damsel
Bangai Cardinal
Yellow Corris Wrasse
Melanurus Wrasse
Green brittle star,and some snails

Oh and an Army of Bryopsis !


Any helpful hints would be Great, as I am near taking down my whole reef and starting over...