what is wrong here?

[HUGE]

hello. i have 3 sick plants right now. they are all void 2.0. 3 diferent phenos. 2 in flower 1 in veg. they are all in ocean forest & up untill yesterday have only recieved RO water at 6.2. this problem starts in veg and gets continuosly worse. the last plant had the same prob and i never solved it. i am assuming its a calcium def but feeding makes it worse. i have tried just cal mag at 100ppm all the way up to a full feed at 400ppm. it only seems to make things worse. i have tried flushing and that seems to slow the progression but it never stopped in the last plant so i dont know what to do with these from here. the 2 flowering are in 5 gal & the veg is in a rose bucket.any heelp would be great,

 

[DrGreenThumb@OZ]

that be nutrient burn and possibly some over watering as well ....

flush with plain water and then after a week start giving diluted nutrients and work your way up but if this happens all the time then you are making your nutrient strength to high.

Also do you let your tap water sit in open air for 24 hours so the fluride and calcium in the water evaporates.

nutrient burn starts at lower leaves and works its way up ...

I have done it many times ... we are trying to make our plants grow faster and bigger by feeding them everyday or watering them everyday when that is infact killing them slowly.

So after your flush plants with 24 hour aired out water let the soil dry so dont water for a week then when you do water and use nutrients only use half the amount of fertilzer your using now.

 

[HUGE]

here is the thing. this happens without ever feeding the plants. EVER. if the plant gets fet it gets worse so thats why i thought nute burn and didnt feed anything this round. i have a post over at ********* but i left there. its under sick void 2.0. it explains all my dealings with this prob the first time. but this time with no nutes the shit started. all my hydro plants of the same strain are fine . def not over watered its lst<d like a mofo thats why so sqwatty. this pheno gets hella lazy at night in veg. its really weird to see it striving towards the light in the day and laying down to sleep at night. is the foxfarm ocean forrest just too hot on its own for this strain? thats my only thought.

 

[Mr. Greengenes]

You say definitely not overwatered, but I think you should reconsider. Your plants look about the size of mine when I have them in 1quart to 1gallon size pots. If I had a plant in a 5gallon pot, it would be about 7 feet tall. It's very hard to accurately water a small plant in a big pot. Overwatering and underwatering follow each other around like dogs with that setup. Don't forget that underwatering concentrates the remaining nutrients and makes salt burn more likely.

Here's a finished plant in a 1quart pot;

Here's one in a gallon;

 

[southpaw]

You say definitely not overwatered, but I think you should reconsider. Your plants look about the size of mine when I have them in 1quart to 1gallon size pots. If I had a plant in a 5gallon pot, it would be about 7 feet tall. It's very hard to accurately water a small plant in a big pot. Overwatering and underwatering follow each other around like dogs with that setup. Don't forget that underwatering concentrates the remaining nutrients and makes salt burn more likely.

Here's a finished plant in a 1quart pot;

Off topic, excuse me, but that is bad ass. I love seeing healthy plants in small containers.