Deficiency: Any Thoughts?

This MasterKush has been growing in veg for 6 weeks, they are not very big and need to go into bigger pots which I will be doing at some stage tomorrow, the growth is slow and on top of that they now have some problems. A spot will pop up out of nowhere and after a few days it will turn yellowish and die off, all the leaf tips at the end have curled downwards which become brittle then fall off and some leaves wilt for no reason. They get 18h of light under a 130w CFL bulb, they are in Terrazilla premium growing organic soil and get fed Growzilla A and B nute mix. I thought maybe it's a magnesium or calcium deficiency or both who knows. I have flushed them to make sure it wasn't a salt build up. Any ideas on what it could be?

Whoa..that's pretty dark green.. could be too much nitrogen..

I thought that at first but I have had darker leaves than that on other plants and they were perfect plus I think the colour is darker because of the camera, there not that dark when you look at them. The N.P.K. of Growzilla is 28.5.30

They look over fertilized to me. Do u know the runoff pH?

Nope. I don't have a PH tester but plan on getting one soon.

What r u watering them with? And how often do u fert?

Pre filtered ground water with 5ml of Growzilla A and 5ml of B once a week

Overwatering or too much N, or both. Probably needs more time between feedings, if any nutes at all at this point

What size pots? Over watering may b the problem. Personally I think its over nuted and runoff pH is too low. Kush likes it around Sixish. So I've been told. Yeah I'd stop notes for at least 2-3 weeks then start with 1/4 strength nutes once a week for the first two three weeks.

10 liters = 2.6 gal. 5ml each of A & B Growzilla in 500ml water per plant.

Agreed to much fert. Look up nitrogen toxicity , and you'll see the dark green, glossy leaves

Annd pre filtered ground water?explain that more if you don't mind sir

Yes plz explain I'm very interested.

looks like insects have been eating your leaves

but the hooked leaves, dark green leaves is somthing else, maybe over feeding/watering

There is a underground river under my town and the next town over. The next town over has tapped into that river and has connected it to every house and business there, they have also put in a public well that has a pre filter on it and that's were I get my water from once a week. I would get it from here as we have a well to but for some reason you have to be a member of a sports club in order to use it, unfair right.

jacksthc: 100% bug free.

Wow, yeah that is unfair. Any who, do u know what kind of filtration system it is? Not really important but it will give u a pH range guesstemate.

No idea but I will check that out.

I ordered a PH tester which is on the way, it should be here in a few days and I have just transplanted the plants into bigger pots.

L.C.C. said:

There is a underground river under my town and the next town over. The next town over has tapped into that river and has connected it to every house and business there, they have also put in a public well that has a pre filter on it and that's were I get my water from once a week. I would get it from here as we have a well to but for some reason you have to be a member of a sports club in order to use it, unfair right.

jacksthc: 100% bug free.

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Lol drive a town over for water, fuck yes that's unfair

Water with water only twice now. They look good otherwise. You did right transplanting. And use reduced strength feedings always until you get a lot of experience. The nute companies want to sell you nutes and a lot of them. Pot survives in the wild because we aren't helping it too much. Try to help less like in Nature.