What can i put in my brackish tank with gsp

[puffer girl]

Hi
    i buy 6 green spotted puffer last week to put in my brackish tang . Now the problem is , i have algae , on my silk plant and in the tank bottom .

My question is what fish can i put with them , that they wont eat  . The fish need to do is job , eat my algae . Dont forget the fish need to be in brackish water .

Martine
puffer girl 

[babblefish1960]

Mollies are a good choice, though the puffers may snack on them.