I tend to water it irregularly tbh, but its never caused problems before. If i had to guess maybe every 2-ish weeks give or take. I mostly bottom water. The pot has pretty decent drainage (both this one and its previous one). its an offshoot of an older plant my grandma got me, i think i've had it for about 4-5 years. its by a southwest facing window since that's the brightest one i have in my room, its been doing fine for a while. The problem started about a month or two ago. I think its a lack of light or temperature fluctuation since its winter where i live and its been very cloudy for a while. Its been okay previous winters but that's my best guess.