Growing Lemon Trees from Seeds, Days 0-47

This plant growing series is a reboot of my first lemon growing series from 3.5 years ago with the same name. I want to get things right the second time around by germinating my seeds in a healthier growing medium of 75% sand and 25% filtered clay soil in a large container volume. I germinated 5 seeds indoors at around 72-74 Fahrenheit/22-23 Celsius for almost 20 days before I got 3 seedlings to sprout. I believe that indoor germination is ideal because it provides for much higher soil temperatures around the clock compared to outdoors germination, and therefore should be faster and more likely to succeed. After the 23rd day, I moved my pot outside onto the balcony, near the rail, to get my seedlings sunlight. Growth was slow after this move because the nighttime outdoors temperatures were much lower than indoors.