help with sprouts under mh w/ pics

[Rusty Trichome]

I've had the terra cotta experience. Once. :jointsmile:

Using the other pot to lift the plant out of the runoff is fine, and is a good idea. Just trying to cover all the bases. :thumbsup:

Plants, like people, have a rough day now and again... Nothing looks overly traumatic, and likely is something as simple as rootbound and/or transplant shock. Old leaves are old news, but keep an eye on the new growth.

Are you using the Grow Big as a stand alone...no Big Bloom? If so, doubtful that 2/3 dilution strength would do any harm. I've been using the FF line for years with good results. Not sure if you've heard, but when using Fox Farms, salt build-up might show it's head. I do monthly flushes, (1st of every month) to prevent this. (1 gallon of properly ph'd water to one gallon of pot size)

You can also split the weekly dose in half, but feed twice a week. You end up with the same weekly quantity of nutrients overall, but are 'softening' the effects of a full strength application. I've been doing this for a few years now. Older seedlings (3rd or 4th true leafsets) and rooted clones seem to prefer this approach.

Ya might have better results by letting them have a couple of weeks of the growth nutrient schedue before the switch. Push the process too quick and they tend to stunt the growth, affecting yield. You'll want to make sure they are good and healthy when they switch to flowering. (are you going to be using Tiger bloom in flower?)

[MRDiff]

Im using Tiger Bloom in flower, yes. I didnt get both Big Bloom and Tiger Bloom. I figured one veg and one bloom nute would be sufficient. My plants are doing decent, but I noticed some brown spots forming on the tips of the leaves. Some of the lower leaves are still yellow on two of the plants. But I noticed Grow Big does not have Calcium. Will I have to give my plants a little Cal Mag soon because of this? I noticed that calcium is vital for growth and I think I have seen a decrease in the rate of growth. Also, one of my plants is drooping regularly. Seemed to perk up after I watered it, and then later in the day the leaves were drooping again. Any ideas? Pics coming in a few.

[Rusty Trichome]

Once degraded, leaf integrity usually doesn't improve. (old leaves are old news)

Big Bloom is a catalyst tea formulated to compliment the Grow Big and the Tiger Bloom.

I've been using unsulfered molasses instead of CalMag Plus for a while now. Molasses has all the calcium, magnesium, iron and carbs you'll need. 1 teaspoon per gallon, once a week. Molasses does act like a 'nutrient kicker', so using a slightly lower dose of nutrients untill you are used to the stuff, is recommended.

Usually, slight leaftip burn shows when you are reaching the upper limit of nutrients. (slight nutrient burn)

Does the soil the problem child is in dry quicker or slower than the others?
Is it directly in front of the fan, or in a corner of the growspace? Pictures of the problem child would help.

[MRDiff]

The problem plant does seem to drying out slightly quicker than the others. The surface is actually still a little most, but when I felt the soil within the drainage holes, it felt almost bone dry at the bottom. This is also the smallest plant, so it is possible the roots have not made it to the bottom of the pot. Here is the pics. Both of the brown spots, and other the drooping plant.

Like I said, Im certain this plant has not been over watered, so what could be another cause of drooping? Its the one in the 3rd and in the back of the fourth pic.

The plant is located in the back of the room right now. I got 3 plants up front, 2 in the back. It in the back, not very close to the fan.There is good circulation in there, but its not near the intake fan.

[MRDiff]

Also do I have to make a third gallon jug for the water with a half teasponn of molasses or can I just add the mollases into my regular water jug?

[Rusty Trichome]

If you are not getting water to the lower regions of the pot, it can 'crust' and not easily absorb water. Especially when underwatering. A surfactant (wetting agent) helps. I use 1/4 tsp of non-antibiotic dishsoap per gallon of water. (anti-biotic soaps will kill the beneficial bacteria in the soil)

I use the molasses on a non-nutrient day, in properly ph'd water. No real reason, other than it gives the plant something to do while waiting for feeding day. (plus, it lowers the ingoing ph a tad more, which the nutrients already do)

Was just wondering if it was placed in a dead-zone of heat, stagnant air or over-breezing. (directly in front of the fan) In a cramped space, usually the plants in the back seem to get less water.

Intake fan...? Do you have an exhaust fan too? Intake fans are usually unnecessary, unless in a tightly sealed tent, enclosure or closet, where air leaks (providing the fresh air) are non-existant.

[MRDiff]

Yes I have both an intake and exhaust. The exhaust fan is a 8 inch circular desk fan, and doesnt go nearly as fast as I thought it would. So I am thinking it may get too hot in there without the exhaust. I took some pictures to show how my set up looks as far as where the plants are. The one is question is next to the intake fan, but obviously not being affected by the fan itself. However, it may be dead area as far as circulation goes. Also, the cabinet is light proof except at the top. Come flowering I need to figure out how to light proof the 8 inch exhaust fan area. I used weather stripping and duct tape to light proof the sides, but you can still see a small amount of light coming from the cabinet near the hinges. So the cabinet is only 99% airtight. I will pick up some molasses sometime soon and add that to my regular water. Hold tight for the cab pics.

[MRDiff]

Huge new problem. So thursday morning I had to leave for vacation for only 2 and a half days. That morning I woke up to find my MH bulb had died. So I quickly switch in the HPS. Well I guess I should have flooded them before I left. Im not sure if the HPS caused the plants to fry out quickly or what, but I came home to wilted leaves and dead leaves at the bottom. Halted growth obviously.

I already flushed them with a gallon of water each (this is my first flush). Do I need to saturate them more than 1 gallon? Im not sure how to proceed, but one of the plants looked close to death. Do I continue the nutrient schedule as normal? Thanks for the help

[Rusty Trichome]

<DOH>

I would at the very least cut back on nutrients till you see some new growth, and raise the lights a tad. Shouldn't take more than a week or so to start seeing major improvements, at which point you can start thinking about resuming normal schedule and lighting. Do all the clean-up work at the same time. What I mean is, don't pull a few leaves today, a few tomorrow, a few the next day. Get it over with, and let her start healing. Stretching-out the stress over time might do more harm than good. If most of a leaf is fine but has crispy ends, chop the dead ends, leave the good parts. Use clean scissors for this, don't tear 'em off by hand.

Keep the leaf litter out of the pot. Bugs love the protection of leaves, to hide and breed under.

Overstressing the roots isn't a good idea right now. The one flush likely helped greatly, but keeping the roots saturated is a no-no.

Minimum of two or three weeks before even thinking about switching to flower.

Should be ok. Cannabis is pretty tough in the growth cycle. Almost like a weed. :thumbsup:

[MRDiff]

Great. Seems like I handled the situation like I was supposed to. At this point, a 2-3 week delay is no biggy. Basically if I was to put them into flower, I would probably risk them herming, correct?

This morning, they all seem to be doing well after the flush. There is one questionable one, but even it is looking better. Who plants could dry out completely in only 48 hours. I wont be making any trips, other than day trips for the rest of the grow I believe. Way easier to maintain them, then correcting them when you come back.

So to confirm, you would not increase the nutrients for about a week. The fact that I flushed the plants wont make them hungry? I dont want to go from one problem to the next. But Ill hold off on the nutrients in the mean time.

As always, thanks a lot.