Indoor Nitrogen toxicity??? I believe it is can somebody confirm (pics)

[8ozAutos]

Here is a pic of my plants jock horror autos they had been receiving a light dose of 15 ml of botanicare power plant series and 5 ml of cal mag ph was at 6.8 and they seemed to be asking for more so I upped the dose to 25 ml and now I'm pretty positive I have caused nitrogen toxicity I have encountered this issue many years ago and theses are the same signs dark greenish almost purple colored fan leaves with signs of mag deficiency please take a look at the pics and tell me what you think

 

[Muddy]

No, doesn't look like N toxicity to me. I'm not seeing the classic symptoms, like the leaf tips curling down, the claw look. The purple color and slight curling of the leaf tips look more like the start of a P deficiency to me. It could be caused by a nutrient lockout if your pH is off. Are you checking your run off pH? If so, what is it reading? 6.8 is a bit high to feed at unless your run off is reading low.

 

[8ozAutos]

Good catch thank you muddy that would make since as flowering is starting to increase and my run off is at 5.8 in soilless mix pro mix to be exact so what would you recommend as they are in the second week of flowering this auto strain seems to be real sensitive

 

[8ozAutos]

Shall I foilar feed the lil lady's before bed with a bloom nute and tmro it should be time to water should i water with bloom nutes this auto was really self sufficient until now it has me puzzled

 

[GoAuto6]

if all vertical growth has stoped then start flower nutes.......

 

[8ozAutos]

Well yes auto6 it has stopped but this was a strange grow as it developed a p deficiency very sudden almost immediately after first sign of sex it shot up and stopped with a p deficiency and being that I have never had this problem with autos and they are much more sensitive to nutes what should be the route that I take

 

[Peekineeze]

dark greenish almost purple colored fan leaves

I don't see any purple or darkening. The leaves look green to me.

 

[8ozAutos]

I don't see any purple or darkening. The leaves look green to me.

If you look closely you will see the blueish tint

 

[Duck Commander]

Thats just pure green lushness mate healthy girls but like muddy said could be a start of P def N overfeed gives you leaf tip curl i had it realy bad on my PK :dance:

 

[8ozAutos]

Thats just pure green lushness mate healthy girls but like muddy said could be a start of P def N overfeed gives you leaf tip curl i had it realy bad on my PK :dance:

Thanks bud they are at 26 days from seed really self sufficient until now I topped the smaller plant and it took to it well the deficiency just showed up as flowering just started and deficiencies in autos seem tricky as they are sensitive lil lady's I foilar fed them today some power flower before lights out we shall see how the lady's take to it