Some Advice Please...

Hi Everyone,

I have a bit of a problem with my Super Lemon Haze at the moment. They are 8 weeks from seed and i'm growing them in root riot cubes and clay pebbles in a Wilma setup. I've been LST'ing them and placed a scrog. My lights are on 18hrs and the Temp is 27-28C and humidity 50-60%. When lights are off my temp is 19C 55%.

My PH is between 5.4-5.8 and EC between 1.3-1.8.

I 've been using Powder Feeding 'Mostly Sativa' for my nutrients and watering them every 4 hrs for 10 mins only when the lights are on.

However i have noticed that all the plants are now wilting. They are not dry but feel and look really limp.

Here are some pics...

Can anyone please advise & help me find out what the problem is?

They look over-watered.

Darwin Riddle said:

They look over-watered.

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But they have been on the same water regiment for the past 4 weeks...

How are you checking pH? If it's a meter is it calibrated? Looks like possible low pH to me. I couldn't quite tell from the pics if that was yellowing on the leaf edges or just the light. Water regime sounds good. I would increase frequency to 3 hours now and shorten time to 10 mins, but i'm in flood drain so maybe different.

Looks like over watering, Cannabis is a dry footed plant meaning roots need to be dry somewhat for it to search or seek food.

I have a brand new Essentials Trident 3 in 1 meter. I did change the feed 2 weeks ago from Advanced Nutrients to Powder Feeding. In terms of watering; i haven't changed their schedule for over 4 weeks and they seemed to have been thriving on that feed time before.

panacea76 said:

I did change the feed 2 weeks ago//////////// and they seemed to have been thriving on that feed time before.

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Maybe the new fert ?? It looks over watered to me and high on (N).

My moneys on to much nutes, lower it a bit and keep that ph above 5.6 and bellow 6.0
Water every 4 hrs for 10 is fine.

Look at those leaves classic signs of claw! And slight brown on the rig of the leaves= nute burn!

Okay i flushed the tank and put the feed in. EC IS 1.2 AND Ph is 5.8.

I think it's the nutrients too as i can see browning on some of the leaves.

I'm surprised it is burning because my EC is so low?

What do you think?

Some genetics just dont like anything but low nutes!

panacea76 said:

Okay i flushed the tank and put the feed in. EC IS 1.2 AND Ph is 5.8.

I think it's the nutrients too as i can see browning on some of the leaves.

I'm surprised it is burning because my EC is so low?

What do you think?

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I am not sure your EC is so low. I am on week 5 of flower and am running at 1.0 - 1.1 EC. I burnt my plants when I went with my nutrient manufacturer's feeding schedule so I am guessing you may be doing the same thing.