What type of lighting are you running?
Don’t water the whole pot. Let the roots search for water. If they are always wet they won’t grow as fast. Water everyday. I gave this same advice to someone the other day. With a plant that size I’d go with a 1/4 solo cup watering a day or 1/2 cup. I don’t give nutes till around the 2nd week. Don’t saturate the stem either.. water the width of the plant. As the plant grows.. up the watering.