Two fish- http://www.ficklefood.com/uncategorized/a-better-fish-bowl/Male and female icons- http://depositphotos.com/2514096/stock-photo-Two-female-icons-drawing-in-the-sand.html
Betta fish eye- http://www.ebetta.com/2007/03/27/betta-profile-halfmoon/Male fish- http://blogs.toorakcollege.vic.edu.au/josephined1/2011/05/17/something-fishy/