Hello Everyone,
I just got a couple of Elho 49cm Black Greenville Self Watering Plant Pot as gifts.

As I have not used this type of pot before, I wonder if anyone could give me some advice regarding the below issues.
- How much water do I need to refill for each watering? When filling water in the tank on the bottom, the soil above begins absorbing a certain amount. I wonder when it is enough to stop filling. Do I need to stop until the soil stops absorbing and the water starts overflowing the tank? I guess it feels like the plant has enough water at that moment and enough extra water is stored in the tank.
- When is the proper time to refill the tank? Do I wait until when both the tank is empty and the top layer of soil is dry? In this case, I think the plant needs a drink and no extra water is accessible in the tank.
- If water is stored in the bottom tank, would it be a problem of causing fungus gnats or root rot?
Thanks in advance to anyone who offers his/her idea.
Kind regards,
Vincent