What's wrong with this plant?

Hi!

I have a plant in a home made ebb & flow system (nothing fancy, just two tupperwares stacked on top of each other and a pump/timer, with an expanded clay medium). The plant is a clone that was given to me about a week ago. It went through 2 days under an incandescent light while I put together the system (it takes a lot of will power to go grab a pump after a 10 hour day lol) and light (200W HPS). And for the first two days, it was severely over watered.

The plant now looks like this:

I was using a GH mix of 10-5-18; [email protected] and I have now switched to a 35-10-25; [email protected]

I try to keep the pH at around 5.8 but for the first 3 days of being in the system, it was at 7.0 (lol... I know, I've been reading since then!)

Temperature is stable at around 25-27 celcius and humidity is stable between 50% and 60%. I do not have a water thermometer yet so I do not know about reservoir temp, but it should be around 25.

The plant doesn't look great and I'm afraid I'm going to kill it At this point, I'm not even sure if it's underfed or overfed or if the over watering damaged the roots.

Any help would be greatly appreciated!

that alot of ppm's for a littlle girl

Gur! Really? I've been following Mel Frank's insider guide, so you think this is nutrient burn?

Looks like a mag, maybe ph, Im soil though.

I think of burning as more brown more crisp.

It doesn't show very well on the pictures, but if you look on the 3rd picture, the lower leaf (it's at the top right of the picture) has burnt spots on it. The more I read, the more I think it's excess phosphorous and potassium that are locking out Mg, Fe and Zn. I am tempted to lower the concentration but I'm afraid I'm going to worsen the situation!

Any suggestions?

Okay, just did a quick search for optimal ppm, it would definatly seem that mine is way too high. I'm going to cut it down by half right now. I'll post progress!

Okay, PPM now at 660 (water is 190 so actual ppm is 470) and pH is at 5.6.

Fingers crossed!

Hello,

When looking at you re ppm, always remove you base water PPM from the final number. Sound like you re girl had too much ppm going and also the fact you re ph was that high probably caused lockout. If using any nutes be sure to mix them well to avoid defiency.

Okay okay, good news! I've lowered the concentration further to 300ppm. Plant is doing better now (took about 48 hours), perky leaves, green hue slowly coming back (or at least, yellowing not progressing).

I'm wondering though. Given that the plant was exposed to an overzealous ppm and had nutrient lockout issues. Would a very mild foliar feed help recovery? Or should I just take it easy, smoke a bowl and wait for it to get better on its own?

Thanks!

P.S. Mel Frank is a douche, and nothing he writes should not be taken seriously. According to his literature, 1000ppm is fitting for seedlings where as anywhere else (including what we call the real world), seedlings should not be fertilized and 800ppm is more than enough for aggressive growth. Lesson learned.

ec too high for little plant kep below 500ppm till its a foot tall at least