Short answer is no.
One of the neccessities for them to spawn is the same as for seahorses.
Depth of water.
When they spawn they twist their way up thru the column of water.
Females are easy to tell from the males when conditioned as the females get really fat. But when the belly goes a toothpaste green, she is ready to go, because that is the colour of the eggs in her gut.
I haven't spawned them myself, been close, but not quite.
But others have, mainly thru the "Wow" I thought I only had five in here and now there's more than ten, and most are smaller than those big ones, syndrome.
But keep trying.
Mine loved white worms