Me salieron manchas cafes en mi planta

Hello! It looks like chlorosis, the yellowing leaves indicate a lack of some nutrients (some people immediately think of nitrogen, but it’s not just nitrogen) but the brown spot can indicate an excess of some, it happens when the water is too hard (contains a lot of sodium, minerals, or chlorine), let the irrigation water sit for 24 hours, applying diluted hydrogen peroxide 1/4 will help clean the roots that are dying from the water.

Usually that always happens to me with those first two bottom leaves they dry up and get brown spots i just clip them off.

hello, it seems to be pH, is it checked? the substrate may also be soaking wet, the symptoms are similar. these first leaves are normal to dry. let the soil dry well between each watering and apply only root stimulator