Brazilian flame tree sick?

[LemonBonsai]

I have a little flame tree. Ive been noticing it decline lately. The leave are turning lighter and lighter green on the tips of each of the little leaflets. Looks like some kind of nutrient deficency. I also noticed the very tips of the leaflets atleast on some of them have shriveled up and turned brown. This looks to me like either fertilizer burn or drought. Does anyone here own one and has had this issue before?

 

[dgratz00]

im new to bonsai but google nutrient deficiency and excess, it will show you a chart with pictures, but it seems like a nutrient issue, i would have say nitrogen deficiency due to the yellowing, but then you have that dying leaf tip, so it could be to much nutrients, lack of micro nutrients etc. Again i gorw pants but never bonsai until recently, so I would take a look at nutrient deficency and excess chart and see if it matches any signs until someone who knows more answers

 

[dgratz00]

I just started a flame tree from seed, its about 8 weeks old, any tips? when do i start to give it nutrients? when should I transplant? I use a grow tent indoor to control the enviornment, it seems to me you use natural light?

 

[dgratz00]

excuse the type of plant i am used to growing, but I find this chart helpful regardless of what I grow https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg

and this is a good flow chart https://www.nano-yield.com/nutrient-deficiency-nanotechnology-solutions