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I think you're watering wrong. Roots spread out through the entire pot and you appear to be pouring water right near the stem. Use the same amount of water, but water the dirt, not the plant.

gtfo that's not miracle grow. If it is it's cut with about 80% perlite. People on here need to get the best advice they can not crap like what you spew. Don't use MG unless you want weak, stunted plants that will probably die before they get through flowering.

Plants stretch because they don't have enough light. Your MH needs to be within a foot of them. You don't want to put a fan directly on young plants or it will cause wind damage.

burnt tips are the classic sign of too much nutrients. It looks like they're on the road to recovery so I wouldn't sweat it too much. If you can be bothered to mix two different solutions I would continue a light nutrient regimen for the healthy plants and just use plain pH'd water on the...

holy crap, yes that's too much and the wrong kind. You need a veg nute, your plant isn't flowering and has nothing to do with the bloom nutes you're feeding it. Plus, only a healthy plant should be fed nutes. Your pH is dead on, it's an overnute problem. Too much of the wrong kind of nutes will...

The more often your plants go from dry to wet to dry again etc. the faster they will grow. heathaa makes a good point too, if you haven't put holes in the bottom of those cups, they'd be drowning, but the soil doesn't look that wet to me. I would put them back under the 400w MH, the greater...

In my opinion that is moisture stress. Are all 30 plants the same strain? Some strains have different demands than others so instead of watering them all every 3 days you might want to use the weight of the cup to determine when the plant needs watering. Especially with the plants looking...

There are those on this forum who would say you can grow plants just fine in MG. I tend to think those people have just never tried anything better. Hardier species might be able to survive, but they will never flourish, and more finicky plants will never have a chance. Just look at how much...

I would say 2 weeks veg, 8 weeks flower, 1 week drying and then 1 week curing. If you just dry your bud and stick it in jars then leave for a month mold will probably consume it.

I bought a $20 pH kit from general hydroponics. It came with pH up and down, and a small bottle of a solution used to show the pH. It's probably not super accurate, but it works well enough, and I can also use the dripper to get exact measurements on nutrients. You can also buy paper strips...

It appears to me as though pH fluctuation is causing a nutrient lockout, specifically magnesium, which is giving your plant the necrotization on its leaves. Distilled water usually has a pH of 7, which is too high to grow grass with. You want a pH of around 6 - 6.5

I learn somethin everyday in this forum. lol!

I hate to break it to ya bud but if you've got pumps set up to drain, then you add a pump to do the watering, that's a hydro system. A variation of the flood and drain system, if I'm not mistaken.

You may not have used nutes yet but your soil has. I haven't used it but I've read ffof might be a little 'hot' for seedlings. Plus I think distilled water has a pH of at least 7, so It may be possible that's a problem. The amount of water you use will determine how much nutes your soil will...

Don't ever remove what the plant is growing in from the roots, you'll shock or possibly even kill the plant. If you've been using too much fert, simply flush the container the next time you water with 3 times the volume of the container with nothing but pure water. MAKE SURE that your soil...

I'd echo everything the other posters said and add also that you shouldn't let your pots sit in water like that for too long. It's not that important for sprouts, but your plants actually grow faster as they start to dry out. Basically the more often your soil goes from wet to dry to wet again...

You wouldn't want to re-use solution like that. A lot of the reason why growers use a run-to-waste watering system is because the extra run-off helps to rid the plant of the salts and other waste products it produces as it grows. Feeding it back to them would be kinda like drinking your own...

Most of the information I'm getting from this thread: https://www.rollitup.org/marijuana-plant-problems/157345-have-plant-problem-check-here.html It looks like you've had over-fertilization which has caused a nutrient lockout. Thats my best guess but might not be right. The yellow and purple...

check the indoor growing section for the official coco thread, it's a sticky. Master of Genetics really spelled everything out nicely if you don't mind a little reading. But anyways croutons are chunks of coco, that look like, well, croutons. A lot of people mix the finer grade coco with...

order some coco online. get a brick of the peat and some of the croutons, mix them together, grow the best plants you've ever seen.