Things are breeding (for real this time)

[LJR]

I've had a pair of serpent stars in my five gallon, and I just watched one climb to the top of the tank, lift its body up in typical breeding fashion, and spew 30-40 black eggs into the water. Is this a sign of a healthy tank? Are these going to actually produce more of them? I don't have any fish, so the eggs might live.