That's a thought, hard to imagine they aren't getting enough water here in the rainy season but it's possible. I will keep an eye on the soil around them and make sure they are getting enough water. I also don't think I've fertilized them in quite a while, my bad. I'll give them some food too
I was thinking of pulling them out and putting some monstera deliciosa in their place. I'll give them some more time and see if fertilizer makes a difference. They are in a planter bed under a fish tail palm.