I agree.... live food is so much more rewarding to watch. That a big reason why I love aggressive tanks.

Warmer temperature (close to 80) and keeping a light on should get them to hatch in 24 hrs. Cookery temps make for longer wait times. You can buy and amino acid supplement like selcon to enrich them. You don't have to worry about if the bbs are eating it. It will stick to their bodies and make for a healthier snack for the fish.