Vertigo, is this tip burn or not?

[Wietie]

Virtigo is growing in soil next to a Dinamed.
They are at day 45 , nutes are BioBizz, led is at 45cm from highest top
Only very few of the leaves have tips that get paler. It's like that for five days now and the leaves don't getting worse. Tips don't get brown but a few other leaves on other buds get affected too, there are three buds now with leaves like this. lower leaves don't get affected and Dinamed is not affected at all and it is not the buds closest to the LED
I don't worry, I just want to know what it is?

 

[Mike20132]

Virtigo is growing in soil next to a Dinamed.
They are at day 45 , nutes are BioBizz, led is at 45cm from highest top
Only very few of the leaves have tips that get paler. It's like that for five days now and the leaves don't getting worse. Tips don't get brown but a few other leaves on other buds get affected too, there are three buds now with leaves like this. lower leaves don't get affected and Dinamed is not affected at all and it is not the buds closest to the LED
I don't worry, I just want to know what it is?

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Given how dark green the leaves are, and the burned tips... Yeah, this looks like nute burn to me.

Maybe someone else can chime in... That much green is probably too much Nitrogen.

 

[namvet25]

Slight tip burn not real bad but don't over due feeding and maybe just give plain water next time she needs watering.