Urgent Marijuana Flowering Problems!!

I have 4 plants in flowering stage 2 of them have been budding for 3 weeks. All four are in miracle grow. I retrieved these plants from my buddy a few weeks ago while they were still in flowering stage and at this point the 2 that are budding, the leaves are starting to curl up a bit and turn yellowish black, from bottom to top of the plant. I havent added any nutrients at all during this whole process. Im not sure what to do. Some leaves are turning a bit dry. I dont know what to do. There under 150w hps lighting. Temperature between 70-80. Any suggestions please??

Pictures tell a thousand words.

If no pictures, then we need feeding schedule, medium, pot size, room size, day/night temps, humidity, PH level, and anything else you can offer up for us to even guesstimate. Pictures are where its at.

Sounds like it is hungry to me though.

Guessing bloom nute hungry..but with no pics its a guess.

Is it the new growth only? Yellowing new growth with black/purple patches on the the blades ? Whats ur PH? Could be too low and not absorbing P / K . Try to keep it above 6.5.

Pics to be sure tho

Sounds like Phosphorus defficency to me. Just guessing like everyone else though

This seems to happen with free plants, issues, thats why he didnt want them.

^Slanty said:

Pictures tell a thousand words.

If no pictures, then we need feeding schedule, medium, pot size, room size, day/night temps, humidity, PH level, and anything else you can offer up for us to even guesstimate. Pictures are where its at.

Sounds like it is hungry to me though.

Click to expand...

Original post updated with pictures.

And He didnt want them because his uncle didnt want him to grow anymore.

Any suggestions now that the picture is up??

them plants are done. start over.

get some nutes and feed at 50/50 watered down for 3 feeds over 6 days at 1 litre water per 5 litre of soil every 2 mornings when the lights come on, set the ph to exactly 6.5 after you add the nutes to the water, (remember that full strenghth ph liquids can burn your nutes too when added to your feed at full strenghth) tomato plant nutes will even do if you have no canna feed . on the 4th feed (8th day) give them normal strength nutes at 6.5ph turning your plant twice a day to get maximum light all over the plant and take any hard yellow brittle leaves off from the bottom of the plants. with that 150w light you must make sure it is as close to the plants as possible without burning.
if your soil is still damp on the second morning when you are ready to feed because your lights are quite low wattage then lower the amount to 3/4 litre water per 5 litre soil. these plants are nutrient deficient and dry and just need a little kick up the arse to get them going.
remember that if water is not set to the correct ph then the plant will not feed properly and dry out, all you will have is a dry wrinkly skeletal plant with nice moist soil full of feed.

p.s the way the leaves are turning up reminds me of curly toes, when you fuck a woman and forget to remove her tights (panthose) when your drunk as a skunk and every time you thrust her toes curl up, lol.