First Time Grower - Wish me luck :D

First week went great, only have a single feminized cheese seed in the cup and it along with 4 of the White Rhino seeds germinated within 12 hours, needless to say I was quite shocked at how quickly they popped up. I tried to germinate a total of 11 seeds of the White Rhino, however only 7 survived of the 9 that germinated. It was a good week and I am giving the seedlings 18 hours light and as much airflow as possible, hoping within in the next week or so I will transfer them to larger pots where I can start giving them some nutrients. I do also have some soft rock phosphate in a container so I will be using, standard potting soil, mixed with worm soil, vermiculite and the soft rock phosphate to see how well they grow, I used a similar combo for my chilli plants and the grew extremely well.