Mixed strain grow

The seeds were germinated in paper towels inside ziploc bags. The first Acapulco gold was slow so I germinated a second seed. Both germinated and I´ll keep the second one outside on the terrace. So, when germinating, I started a few backup seeds in case my primary selection of strain seeds wouldn't germinate. The backups this time was a Northern Lights and an OG Kush. The OG Kush seed didn't germinate quickly, so I started a second seed as a backup for the backup. All my primary seeds germinated so I don't need to plant the OG Kush seeds. I only had enough soil for 2 extra plants on my terrace, and I selected the Northern Lights and the second seed of Acapulco Gold. Such a legendary strain is worthy of being grown both indoors and outdoors. However, the slow OG Kush seed is coming with double power now - it has 2 tap roots!!! I've never seen that before. I'd love to stick it into a pot, but I have no more soil.