You (probably) don't even have a bug problem so why "add some water to 'a pesticide'and spray some on ur plant".
I only noticed one leaf tip that had some bug chew. The critter may be long gone. They (the plants) are small enough that you can carefully inspect the leaves top and bottom with a mag glass and spot the insect if it's still there. That type of damage is usually from a sizable insect, not a microscopic mite or aphid. Should be easy to spot.
i forget ... what kind of soil and they look over watered cause it rained Like for 2 days on and off like every couple mins and 1 of them got squashed by the rain -_-