Which nutrient deficiency is this?

To me this looks like an excess of phosphorus locking out other nutrients such as calcium/magnesium. What is the total NPK value of the nutrient line in the ratios that you are using? If P is significantly higher than a typical 3-1-4 ratio then I would consider flushing 3-4x the medium with PH'd water and feed a modified schedule closer to the 3-1-4.

Could be a light toxicity. I notice your lights are very close. Try raising them up and see if it makes a difference.

Potassium Deficiency because of the burns in the middle u also have and Nitrogen Deficiency because of yellow and burned tips i can lower the feed

I believe that is a phosphorus deficiency in combination with a Potassium deficiency. Phosphorus is really useful when the plants are in their early stages because it helps with development of the grow tip