Can My Babe be Saved?

Ya ambient temps fine but the light I'm guessing was too close... I got that when I used a mh light before, that's why I don't fuck with em... to dam hot and hps has more lumens anyways. He could move his light where he had it and put a therm at the top of canopy and see what the temp of it is then.. But make sure to move it back again lol

MH, 400w, 16 inches away. he even moved it to 2'. with a plant that size. with due respekt man, that don't sound right.

according to the light distance chart, 16" give 6000 lumens. that's not too much is it?

Have you ever felt that heat that comes off those bulbs.... its hot lol even at 16 inches away... 2 feet might be a little bit too far away though

I just don't see any other symts that would show underfeeding or overfeeding.. It actually looks pretty healthy

@asaph

what's your opinion on his problem?

a magnesium deficiency. I've had that, looked the same. possibly due to pH fluctuations (he mentioned that. it's climbing super fast for him).

You are hereMagnesium Deficiency

Magnesium Deficiency


Problem: The edges of the leaves may become yellow or bright green and may start feeling crispy to the touch. The light green or yellow coloring may also effect the veins of the leaves.

Solution: It is very important to maintain a proper pH in order to avoid a magnesium deficiency. Adding more magnesium to a system when there is a pH lock-out will only make the situation worse because the plant will not be able to absorb any magnesium until the pH has been corrected. Flush the system with properly pH'ed water that contains a full set of proper nutrients and see if the new growth starts looking healthier.

Magnesium (Mg) deficiency is a detrimental plant disorder that occurs most often in strongly acidic, light, sandy soils, where magnesium can be easily leached away. Magnesium is an essential macronutrient found from 0.2-0.4% dry matter and is necessary for normal plant growth.[1]

A plant with Magnesium deficiency


Excess potassium, generally due to fertilizers, further aggravates the stress from the magnesium deficiency.[2]
Magnesium has an important role in photosynthesis because it forms the central atom of chlorophyll.[1] Therefore, without sufficient amounts of magnesium, plants begin to degrade the chlorophyll in the old leaves. This causes the main symptom of magnesium deficiency, chlorosis, or yellowing between leaf veins, which stay green, giving the leaves a marbled appearance. Due to magnesium’s mobile nature, the plant will first break down chlorophyll in older leaves and transport the Mg to younger leaves which have greater photosynthetic needs. Therefore, the first sign of magnesium is the chlorosis of old leaves which progresses to the young leaves as the deficiency continues.[3] Magnesium also is a necessary activator for many critical enzymes, including ribulosbiphosphate carboxylase (RuBisCO) and phosphoenolpyruvate carboxylase (PEP), both essential enzymes in carbon fixation. Thus low amounts of Mg lead to a decrease in photosynthetic and enzymatic activity within the plants. Magnesium is also crucial in stabilizing ribosome structures, hence, a lack of magnesium causes depolymerization of ribosomes leading to pre-mature aging of the plant.[1] After prolonged magnesium deficiency, necrosis and dropping of older leaves occurs. Plants deficient in magnesium also produce smaller, woodier fruits.
Magnesium deficiency may be confused with zinc or chlorine deficiencies, viruses, or natural aging since all have similar symptoms. Adding Epsom salts (diluted to 8.5 oz. per 2.2 gal. of water) or crushed dolomitic limestone to the soil can rectify magnesium deficiencies. For a more organic solution, applying home-made compost mulch can prevent leaching during excessive rainfall and provide plants with sufficient amounts of nutrients, including magnesium.[4]

Magnesium (Mg) deficiency is a detrimental plant disorder that occurs most often in strongly acidic, light, sandy soils, where magnesium can be easily leached away. Magnesium is an essential macronutrient found from 0.2-0.4% dry matter and is necessary for normal plant growth.[1]

A plant with Magnesium deficiency


Excess potassium, generally due to fertilizers, further aggravates the stress from the magnesium deficiency.[2]
Magnesium has an important role in photosynthesis because it forms the central atom of chlorophyll.[1] Therefore, without sufficient amounts of magnesium, plants begin to degrade the chlorophyll in the old leaves. This causes the main symptom of magnesium deficiency, chlorosis, or yellowing between leaf veins, which stay green, giving the leaves a marbled appearance. Due to magnesium’s mobile nature, the plant will first break down chlorophyll in older leaves and transport the Mg to younger leaves which have greater photosynthetic needs. Therefore, the first sign of magnesium is the chlorosis of old leaves which progresses to the young leaves as the deficiency continues.[3] Magnesium also is a necessary activator for many critical enzymes, including ribulosbiphosphate carboxylase (RuBisCO) and phosphoenolpyruvate carboxylase (PEP), both essential enzymes in carbon fixation. Thus low amounts of Mg lead to a decrease in photosynthetic and enzymatic activity within the plants. Magnesium is also crucial in stabilizing ribosome structures, hence, a lack of magnesium causes depolymerization of ribosomes leading to pre-mature aging of the plant.[1] After prolonged magnesium deficiency, necrosis and dropping of older leaves occurs. Plants deficient in magnesium also produce smaller, woodier fruits.
Magnesium deficiency may be confused with zinc or chlorine deficiencies, viruses, or natural aging since all have similar symptoms. Adding Epsom salts (diluted to 8.5 oz. per 2.2 gal. of water) or crushed dolomitic limestone to the soil can rectify magnesium deficiencies. For a more organic solution, applying home-made compost mulch can prevent leaching during excessive rainfall and provide plants with sufficient amounts of nutrients, including magnesium.[4]

Well, this is a picture of what I had:


(also with yellowing blotches on other plants' leaves). I can't tell for sure of course, it could be something else, but it was solved when I flushed well and added some epsom salt. and stopped watering so god damn much.

Thanks guys am on my way to get some espon salt.. yayyy

K I couldent get espon salt so I got some cal mag I just checked water temp and its hot in there about 85.. so am about to cover all the black to white and am hooking my cooltube up right amma do that and c what the temps are after.

Ok I just set up my cooltube properly hopefully the water temp goes down.