First Grow Dutch Passion LED DWC

This has been rather stressful for me since it is my first grow. Initially germinated 5 seeds, only 3 sprouted. I'm gonna germinate another 2 TD seeds to replace the duds. The weird growth on the #2 and #3 has got me panicked. But I figured it was due to the over saturated jiffy pellet i had used to germinate them. I'm gonna try to let the jiffy pellet dry slightly by reducing the water level in my DWC bucket. Maintaining below 30C temp has been a nightmare due to the climate in my country. Constantly misting the tent in attempt to maintain a humidity above 50% and turning the exhaust fan off at some point. Cal mag I used is highly concentrated, so the amount I used is way below the recommended bottle instructions.