Hi everyone! 
I have a Podocarpus Macrophyllus established 2,5m tree indoor.
There is no natural light and low air circulation. I have grow lights set up and trying to keep the teee alive:) 
Unfortunately, shortly after planting the tree was attacked with scale insects. I kept the infestation under control, used neem oil.
Did not get any recommendations on watering so tried to adujst in myslef, every 10 days on average.
The tree was doing great, lots of new growth, started producing cones.
After 2 months now is on the verge of dying, if not dead already..
New growth wilted, now falling off, bark seems dry and branches also dried out. Scale insects are obviously gone now.
Any ideas, please 🙏

Why is it inside? Possibly the effects of the scale, poor light, incorrect watering or a combination of all these.

What does " established 2,5m tree" means?? 2,5 meter?