Plants tops are burned/overferted. Help please.

Hello! I'm using canna gamma, soil is royal from plagron.. on soil instructions its written first 6 no need nutrients. in about 4 week i changed to flower and in my opinion in this time i had a little nitrogen deficiency due to only soil resources. My flower fert have good N - 3, so i decided i wont buy additional nitrogen as mononutrient. The tops were near perfect before, but I'm pretty sure they have been little burned by the bulb.. 600w with reflector and another with tube. but is there also over fert, and how to react on my little burned tops? they are alive, on my touch they have humidity in there and are not dead at all, but i do not like the colour.. so should i go tap water with enzymes and roots or go straight with the stuff and just pull up the lamps? I believe little burn just on tops is like kinda overfert, cuz of the temperatures the tops could not assimilate the food it's given. Am i right, or? Give me advice what to in this situation please. Thank you in advance!)

I have no experiance with soil, but you should raise the lights maybe 2-3 inches more and
see what happens because it has the least affter effects if it's not the light.

If nothing changes in a week you could try multi/micro nutes with N-P-K (but you should
get a second opinion about that one)

But to me they look very good except for the light colour on the tops.
Is it your first grow with this strain?

nutrient burn is usually from the bottom of the plant upwards. any defects the plant will have on the top is either burning from the lights, or a deficiency.

Yo wat up? Ain't nutting rong leaves look good?
How high is yo 600 watter above the plants?
Yo u talking bout that new growth that's really yelllow?
That's from a good feeding of nutes, did you just give'em
a good dose of nutes? Next watering just given plain water
a regular watering no flushing!