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New to bonsai - I received my bonsai as a gift in 2021 and was told she is over 5 years old. She did great for the longest time, then I pruned her sucker limbs and small "dead" limbs. Now her leaves are browning on the ends and looking very brittle. She is getting some new growth but not as much as before. I am watering her about every 3 days when her tray is dry. I last gave her fertilizer pellets about 2 months ago. I'm looking for advice on what I need to keep doing/stop doing/start doing to get her back to healthy. Thank you in advance - any advice would be greatly appreciated.

First question comes to mind is where does it stand. Full sun? Or more shaded?

Could it have dried out? Been in a very dark environment?

These tropical are hard to keep healthy as they stay indoors for winter, which is a rough living environmet. If weather allows I would move it outside.