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bright tips and splotches on some of the leaves. Maybe too much light?

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Is this normal or is there something wrong here? Repotted them into their final pots a week ago and started seeing growth shortly after. Haven’t started giving any nutes yet. PH is always 6.5 or slightly under when I water them.

using a Mars hydro ts1000W at 75% brightness and I keep it about 20” from the tops of the plants.
 

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It's normal. Don't worry about nutrients, your soil has enough for a while still. Actually, it looks like the tips of your leaves are burned a little bit so the soil is a little hot for them right now. Don't worry though, they'll grow into it and be just fine. Hope that eases your mind.
 
Thanks, I appreciate it. If this is slight nutrient burn from my soil do you think I should wait a little bit to top them? Their 6th node has grown in now and I was going to top between 5 and 6 today or tomorrow. I just want to avoid stressing them out too much
 
No they look healthy so go ahead top. I like to water right after also when i do topping or training i give them a drink if it's time for them to get water? I time it as such with training :) go ahead move forward with them.
 
I'm going to go against the more experienced growers who already answered you and offer an alternative explanation. This looks exactly like what my Magnum autoflowering strain went through, which was light bleaching from the LEDs being too close to the plant. Check my original (and first) post here for some pictures. My lights were significantly less potent than yours, so for a 1000W light perhaps 20 inches is a bit too close. You could try raising them a bit before changing your feeding schedule to see if that helps or not.
As an additional comment, I've found — as lalaland mentioned in my original post — that flowering plants can handle being a lot closer to the LED lights than vegetating plants.
 
they look fine. Make sure your PH test is fairly accurate because growing in super soil can be tricky. remember that soil takes longer to dry out so under optimal heat and humidity, they should be watered every 3-4 days and every other watering should be a good flush with just properly PH'd water. Remember to check PH after you mix nutrients in the water.
 
Yeah that does look very similar. And I was having issues with low humidity for a few days before that started. I’ll raise up the light a bit and see if that helps. Thank you
 
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