What happens when ammonium hydroxide is added to the aqueous solution of Iron(II) sulfate?

When ammonium hydroxide is added to the aqueous solution of Iron(II) sulfate, a green-ish precipitate of ferrous hydroxide is formed and this precipitate is insoluble in the ammonium hydroxide.

Reaction Involved:

FeSO₄+2NH₄OH→[NH₄]₂SO₄+Fe(OH)₂