Hey, how's it going? I give about 500ml of water every 2-3 days until around week 4/5. If that's too little, you can always add more. Once the plant is a good size, I give 10-15% of the pot volume every 2-3 days.
⅓ of the pot volume is too much for soil. If the soil is too wet, it can negatively affect growth and also cause root problems.