Coral won't grow!

[Metrontech]

Ok so newb error...

On my calcium reading I was wrong it's around 380

Nitrate - 0
Phosphate - < .25
KH - 9

That seems to be in the right ranges

Also I replaced my blue light as it was aged and after a day there are polyps starting to come and my Kenya tree is actually standing up a bit instead of drooping

Last question for the pros... What's the best salinity level?

One of the charts said 1.026

Are there preferred salinity levels?

Much appreciate the help