Okay, let's troubleshoot your real problem!
You are giving too much water. The soil looks like it's quite dense, and that means a dry surface isn't indicative of a dry pot. Feel the WEIGHT- lift the pot to determine dryness.
You should read the sticky at the top of 'basic' about continuous canopy, and the FAQ entry about potting-up. Unused soil in a pot too large for a young plant WILL stagnate and become problematic.
If you can punch a BUNCH of large holes in the sides of the pot to aid drying and root zone oxygenation, I'd do that right away.