Hey Growmie,
Very simple fix, just let the plant dry out till the point where the pot is super light when you pick it up this also helps with preventing overwatering. Remember the plant will look sad or droopy until it begins to dry out.
Hey bro! That's overwatering! Right now, the plant needs 300-400 milliliters per watering! 1 liter is too much!
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Let the top 2-3 centimeters of soil dry out, and only then water! 👌
Good luck, bro! ✊😇👍