Hey Argos! It can totally stay, don’t give up! Don’t worry at all about the yellow leaf at the bottom, that’s completely normal for clones. Since it doesn’t have roots yet, the plant is pulling nutrients from the lower leaves to grow new roots. Just make sure the soil isn’t soaking wet, because then the stem can easily rot. Just keep it slightly moist. If you haven’t done it yet, put a clear plastic cup or a cut bottle over it to maintain high humidity. A little patience and it’ll be fine!