aqua_chem
Aquarium Advice Addict
Yes. Even less likely if a tank doesn't have co2. The top of the palmy is lush and growing nicelyw here it really needs co2, so why would it loose older leaves? It wouldn't. You only see co2 deficiencies in tanks with co2.
When you say it causes algae, are you saying a lack of carbon or a lack of co2? You may think they are the same, but they are not. There's a difference.
Care to elaborate on these points?