Seedlings are the most vulnerable to attackers. Anytime I have plants that small I always put a āring of fireā around it of cayenne, cinnamon works well too. Since itās just in veg u can dust the plants with it too without issues
I avoid neem, feel like it makes the buds to harsh
Really to have a lil leaf damage aināt gonna bother it, if a top got chewed off or missing most ur seedling id be more concerned but weed is resilient, just ward off the pests and the thing should still do fine.