What are you hoping to get out of this spawn? Form, color, finnage or for the experience?
I ask because your breeding pair should be picked with that in mind.
To avoid damage to the pair I usually leave the female in her glass vase 1 or 2 days until I really see signs of them being ready to breed (dancing, bars and bubblenest). In my last spawn, the female was ready immediately but the male wasn't. If I had let her out, he might've teared her apart.
Best of luck with your spawn... keep us updated!