Do you have any film canisters with water in the tank? Those work ....if you don't have any give him a small cup of water to place them in. Or he'll use the broms if there's water in them. He just needs some place to deposit the tads. If you're nervous about caring for them you could leave them with the parents. But they will be hard to catch when it comes time to remove tiny froglets from the parent's tank. For that reason alone I'd say pull them. They will lay more eggs if you continue to pull them.

Congrats Dad!