In my opinon, your 10G is heavily overstocked, and rams are south american.I have 2 german blue rams in a ten as you can see below. They show no aggresion and have laid eggs a few times. They are a delight to my eye, and whoever wants some, GET THEM!! Because they are amazing. A good setup would be a pair of GBR, and about 6 neon tetras, then an oto or a few corys. Perfect south african tank!