Normal handling shouldn't damage leaves. Getting nutes on leaves can cause damage or spotting to occur.
Your spots resemble a calcium deficiency though. I was unable to locate any information online about the nutrient and micro nutrient content in your fertilizer though.
But when you see spots or anything different appear, always check your soil PH again, before adding/reducing nutes.
When roots come through the bottom, it definitely means it's time to transplant, and for your next grow, keep the timeline in mind so you can transplant before that happens.
Sagging leaves are usually a sign of overwatering. Double check your soil moisture before watering again.
Trust me, THOSE stems will bend. Just do it gently, a little each day. Just make sure the stem has at least 5-7.5cm to make the bending easier.
Remember the Veg period is crucial for insane root growth. Water heavily, then let them dry out before you water again. Time between watering depends on the pot, soil mix, and plant.
Otherwise, they look really good. Nice and green, and all growing at about the same rate. Keep up the good work!
With a little practice responding to problems, you will get better. The first grow is always the hardest because there's so much to learn at once. After you move on to your second grow, you'll know a lot more, and it gets about 100x easier
Hey, good to see you here again! Thanks for checking in
I am pretty baked right now, so sorry in advance if this in incredibly difficult to read...
We tried to be gentle, but there was quite a bit of friction between leaves when we were trying to bring younger growth to the front. I stabbed a couple of tiny leaves at the top of the plant with a sharp end on the wire (fans below FIM site) and they had to be removed. We also got soil on the leaves during the transplant. Only after two messy pot changes did I read the simple idea of cutting a circle of cardboard to cover the topsoil with a notch cut in to the centre for the stem to slot into. Wish I'd seen that before! We wondered if the soil could have burned the leaves a bit - it contains fertiliser.
It does resemble a calcium deficiency, but most images I see have a more uniform distribution of brown patches. Ours seem random in their location on each leaf, yet localised to certain areas of the two fem seeds - it seems to depend more on the placement of the leaves in relation to the light than whether growth is young or old, or branches off the bottom or top of the stem. We rotate the pots, so it makes sense that this would affect leaves 360 degrees around the plant. When we had smaller pots, BS was always a little further back than the others. We only swapped W and E from left to right, as we wanted them to get the most light (sorry Bag Seed). Comparing all group shots from day 18-31, the plant on one side was noticeably more droopy in most shots, regardless of if it was E or W, so there might be a problem spot in the tent. BS doesn't show much leaf damage, and its leaves have always had a softer texture and stood proudly more consistently than the others.
We blacked out the window to avoid people seeing the light when the tent door is open and forgot that we had shut it during a cold snap (night temps hit 20C at one point), so it was getting stuffy in the room and the tent was getting warmer. The door's usually shut to keep the cats away, so CO2 may have been depleted too. We opened the window and temps have dropped to 24-26. I'll be home at the end of the week following dental treatment, so hopefully I'll be alive enough to check temps just before lights on, when I assume they will be lowest. We've also raised the light slightly and angled the fans directly up at the bulb - when we moved to the second pots the fans were blowing across the soil and through the plants rather than above them, and the wind might have dried them further. BS was out of direct wind before, too.
The new fan angle and our slightly bigger pots after 2nd transplant mean that we must have two pots at the back and one at the front, so we've temporarily placed BS at the front and left the others a little in the shade. BS has since developed a small patch on one fan leaf which falls directly under the light, supporting our hopeful theory. If the leaves continue to get worse, we will probably raise the light further. Hopefully the fall in temp will help the girls in the next couple of days.
We've been religiously checking input and runoff pH on every watering. Water has been consistent, and we've only fed nutes twice - once at about 1/8 strength when yellowing first appeared in the first pots, and once at about 1/4 strength in the second pots. The nute solution showed as similar a pH to water as we could tell using the strips. A pH meter would help but we can't afford anything better than one of those crappy soil tester ones right now, and that is almost definitely worse than litmus paper. It's inconvenient in that relying on colour distinction renders it accurate to about 0.5ph. But it's probably not going to tell blatant lies like a dodgy, uncalibrated tester would.
I'm now unconvinced that pH is the culprit, though. While every liquid applied has had a pH of around 7, the runoff changed from a consistent 6-7 over all three pots and several waterings to around 6 after the second nute application (again, same result achieved for all three pots). Since these are the extremes of the acceptable range, it's possible that pH could have hit 5.7 or 7.3 and caused issues. But the small 'sticky' patches on the leaves have appeared in both situations. If the plants experienced lockout of nutrients at one end of the scale, shouldn't the symptoms have been different once pH dropped? Or is this runoff method highly inaccurate and we should be testing in another way?
I had a look into salt buildup and checked out our tap water quality. If everything in the water is listed in the table (which I assume it is - really comprehensive data, updated weekly, multiple tests, results for bacteria, arsenic, radioactivity levels...all sorts!) then ppm of plain water doesn't exceed 100 if all elements are present in their maximum levels. So it probably averages about 70ppm. Below is an amended list; I removed any data with zero/negligible values, unless they're listed as nutrients required by cannabis. Maximum conductivity is 152 us/cm. I know very little about what any of this means apart from that the water looks relatively plain. I don't think the sodium level is excessive but don't know for sure. If anyone has any idea, please let me know. This assumes that our plumbing is not affecting water quality. I did attempt to format the table but it evidently didn't work.
Parameter Min Average Max Units
Boron <0.0029 <0.0083 0.0127 mg B/l
Calcium 7.15 9.42 14.1 mg Ca/l
Chloride 9.26 10.0 10.8 mg Cl/l
Residual chlorine - Total 0.23 0.57 0.97 mg/l
Residual chlorine - Free 0.17 0.53 0.88 mg/l
Copper <0.0006 <0.0071 0.0195 mg Cu/l
Fluoride 0.0300 0.0400 0.0500 mg F/l
Total hardness 11 14 19 mg Ca/l
Iron <2.15 <6.05 46.0 µg Fe/l
Lead <0.0500 <0.341 0.820 µg Pb/l
Magnesium 1.40 2.59 3.10 mg Mg/l
Manganese <0.130 <0.540 3.33 µg Mn/l
Nitrite <0.0016 <0.0016 <0.0016 mg NO2/l
Nitrate 1.55 1.93 2.39 mg NO3/l
(Nitrate)/50 plus (nitrite)/3 0.0300 0.0382 0.0470 mg/l
Total organic carbon 0.670 1.02 1.40 mg C/l
Hydrogen ion (pH) 7.13 7.52 7.91 pH value
Sodium 13.4 14.3 15.4 mg Na/l
Sulphate 26.5 30.3 34.3 mg SO4/l
If it is a Ca deficiency, but not one caused by lockout, then obviously we need to get some in there! There's not much calcium in the water, so the plants aren't getting enough that way. Our soil contains dolomitic lime, which apparently slowly releases calcium and magnesium. I'm a bit wary of adding anything extra to the soil which we can't remove later. So far, we've decided we're going to feed nutes (maybe 1/3 strength) on the next watering and take it from there. If the food and reduced heat don't help, and pH is the same, then we'll go with supplemental Ca The plants have had water for two runs - we didn't want to chance it as the markings on some leaves resembled slight nute burn - but giving plain water hasn't really slowed or speeded the progress of leaf damage. It's very gradual, but is increasing slightly. We'll see what effect nutes have in a few days.
Thanks for bothering to look up our nutes! Info is sorely lacking. I hope this isn't a bad sign. The ingredients aren't listed on the packaging that I can see, and there's no solid evidence online. I have read a couple of comments that supplements are unnecessary, but how reliable that is I can't tell. The bottle, however, states that it contains all necessary micro and macro nutrients from the veg stage, so surely this must include Ca? There are hard and soft water versions - we got soft - and product descriptions for the hard one states that it's balanced to account for the high levels of Mg and Ca in hard water. The soft water version doesn't explicitly state the converse, but it was brought out after the hard version, so logically it should contain sufficient Mg and Ca. This is another reason I'm reluctant to jump in and add supplemental Ca - if the nutes have it too, it could get saturated later.
We'll have to try and see! I think we've probably been too careful with this grow, and it's mainly my fault from reading too much and worrying, haha. I understand why you'd assume we overwater from the pictures, but we've really made an effort not to - we usually wait a little extra, just to be sure. The pots are noticeably lighter, and the topsoil is bone dry. Soil underneath is cool but not moist. We never water before the lights go out. GF thinks that we wait too long! We watered when the LST was applied, then transplanted a day or two later. The soil didn't feel wet, and the roots were clearly visible all around the sides and bottom - they'd moulded to the shape of the pot, and the root ball almost filled it. They were thick, white, and looked healthy. There was a tiny handful of loose soil left at the bottom after removing each plant. Possibly lack of space has stressed them and made whatever they're experiencing now more extreme.
The new pots are 12L and hopefully will see us through to the end. I don't think bigger pots will fit in the tent! It's hard to believe they filled out those pots in less than two weeks. Anyway, we resisted the urge to water immediately, and the drier soil in the bottom of the pots probably pulled some moisture out of the root ball. Part of the pots (actually, buckets - there were no pots left at the shop) were translucent and roots were visible after just 24 hours. I covered the pots with foil to block light from the roots. The new pots are only about 2" bigger in diameter, but nearly twice as deep.
The plants had been released from their wires while repotting, so the leaves looked a bit sad at first, but a few hours later they looked much happier. We're going to leave the training until the branches get a bit longer, to avoid the leaves rubbing together too much. When we opened the tent the next day, they were drooping again. We knew it wasn't too much water as we hadn't given any, and the leaves on E and W always feel a bit dry despite BS usually having the wettest soil. We gave 1-1.5l water per pot until it dripped out the bottom (5-10% runoff). pH was around 7 going in and 6 coming out again.
A day later after water and slightly cooler temps, the plants look much better in terms of drooping, but Eulalia's patches are getting slightly worse. I'm a bit annoyed now that we didn't give food with the water, but we didn't want to shock them while FIMming or transplanting. They must be pretty damn hungry by now - our soil does contain some nutes but I think the only N in there is some earthworm castings.
This is going right off course. My response to Antics has got all jumbled up with this longwinded update. I'm sorry, man. Thank you for your support and the good words. It's great to hear they look all right to someone with beautiful plants like yours, second grow or no! I hope you're right about the problem response part. Our default response so far has been to do nothing. Although...they haven't died yet, so maybe it's not the worst tactic! Saying that, we did alter their environment quite drastically in the last four days - two brief stages of training, new pots, less wind, less heat, more CO2, and slightly less intense light. If they improve, we'll never know which was the most important factor. Ah well. If they live, we're happy!
Pictures to finish, yay!
Day 31
Slightly more aggressive LST which lasted all of a few hours before we changed pots. D'oh. Also, slightly newer FIM pics...
Winifred
Bag Seed
Eulalia
Group
We didn't get any root pics, but here they are in their new homes after a rough day!
Looking much happier after a few hours settling in
Day 33
They drooped again by the next morning. We watered late at night and reduced heat, and within 12 hours opened the tent to this
Winifred
Eulalia
Bag Seed
New leaf shots - first two are the second set of fan leaves to be removed from Eulalia. The yellow slowly spread and necrosis followed. It'll be interesting to see if any new leaves yellow now these are gone...Most leaves pictured here have been shown damaged in previous updates.
Any input is welcomed. If you made it to the end of this, you deserve a biscuit! Go and eat one, now.
Thanks for reading/looking, as always. Sleep well, folks...
Zabka & SO