Dude you're retarded if you have high enough air circulation and a controlled environment water evaporates quicker than algae or fungus can grow....when you constantly over water everyday algae will form from moisture on the top because of the lights, algae and fungus need light to grow too, if you drench your pot once every 7-10 days at seedling in a pot thats 3 g. it'll have the same effect and actually cause an improved root system
Edit: Fungus doesn't need light...i was on a roll and threw it in their...that and im stoned as fuck off this