# Weird yellowing young plants **URL:** \ **Category:** Troubleshooting\ **Created:** [October 28, 2018, 9:40pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871 "2018-10-28T21:40:32Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![SeenDog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seendog/32/230691_2.png) [@SeenDog](https://ilgmforum.com/u/SeenDog)\ **Post date:** [October 28, 2018, 9:40pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/1 "2018-10-28T21:40:32Z")
18 days from sprout. Noticed some yellowing on new growth. 300w led 20in from top of plants. Stays around 73-75° with 50-55% RH. Ffof nothing added from seed. Sorry if pics dont work…still learning. [20181027\_100446|375x500](https://ilgmforum.com/404) ![20181025_214239](https://global.discourse-cdn.com/growingmarijuana/original/3X/6/2/62320d3a8af2548d54adf92353d0f5ce5f21ae66.jpeg) ---
**Author:** ![Seeddog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seeddog/32/431094_2.png) [@Seeddog](https://ilgmforum.com/u/Seeddog)\ **Post date:** [October 28, 2018, 10:33pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/2 "2018-10-28T22:33:43Z")
I do know that new growth often has light green or yellowing of the leaves but I do see some blotching on some of your leaves , I’m not sure what that could be but we should wait and see if we can get others opinions . ---
**Author:** ![basementstealth](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/basementstealth/32/298529_2.png) [@basementstealth](https://ilgmforum.com/u/basementstealth)\ **Post date:** [October 28, 2018, 10:35pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/3 "2018-10-28T22:35:40Z")
she looks fine to me. did you recently transplant? ---
**Author:** ![SeenDog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seendog/32/230691_2.png) [@SeenDog](https://ilgmforum.com/u/SeenDog)\ **Post date:** [October 28, 2018, 10:40pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/4 "2018-10-28T22:40:29Z")
Nope. No transplant. Left her in a little biodegradable pot. This pic was taken 2 days a ago. My other girl looks nice and green with 1 little yellow mark on one leaf ![20181027_100455](https://global.discourse-cdn.com/growingmarijuana/original/3X/7/d/7d206c263ee8fe9bbaf1b7ff0a36f0b704e23ffa.jpeg) ---
**Author:** ![tanlover442](https://avatars.discourse-cdn.com/v4/letter/t/7ba0ec/32.png) [@tanlover442](https://ilgmforum.com/u/tanlover442)\ **Post date:** [October 29, 2018, 12:23am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/5 "2018-10-29T00:23:15Z")
Watch the plant…just before lites out. Then look first thing in morning…the new growth is paler and will turn green during the day under lites. Normal…thing for a healthy plant growing fast. ---
**Author:** ![SeenDog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seendog/32/230691_2.png) [@SeenDog](https://ilgmforum.com/u/SeenDog)\ **Post date:** [October 29, 2018, 1:53am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/6 "2018-10-29T01:53:11Z")
![20181028_214444](https://global.discourse-cdn.com/growingmarijuana/original/3X/9/e/9efdddfdc0d5461c3419f263d5c8baadf5059746.jpeg) If i look closely, i see that it kinda looks like if i were peeling after a sunburn… ![20181028_214607](https://global.discourse-cdn.com/growingmarijuana/original/3X/f/7/f70a926aff196d24b264879bd083ca1183e793a3.jpeg) ---
**Author:** ![basementstealth](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/basementstealth/32/298529_2.png) [@basementstealth](https://ilgmforum.com/u/basementstealth)\ **Post date:** [October 29, 2018, 2:11am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/7 "2018-10-29T02:11:38Z")
lets see how the next set of leaves look ---
**Author:** ![Anonyboii](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/anonyboii/32/135630_2.png) [@Anonyboii](https://ilgmforum.com/u/Anonyboii)\ **Post date:** [October 29, 2018, 6:13am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/8 "2018-10-29T06:13:13Z")
Looks like it could be a deficiency to me. Are you giving them any food yet? ---
**Author:** ![blackthumbbetty](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/blackthumbbetty/32/528626_2.png) [@blackthumbbetty](https://ilgmforum.com/u/blackthumbbetty)\ **Post date:** [October 29, 2018, 7:23am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/9 "2018-10-29T07:23:54Z")
What’s your pH? Runoff ppm/tds/ec? Light cycle? Watering amt/frequency? My phone won’t load the pics b/c of bad internet service on my end. Hopefully they’ll load by tomorrow. ---
**Author:** ![DoobieNoobie](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/doobienoobie/32/235851_2.png) [@DoobieNoobie](https://ilgmforum.com/u/DoobieNoobie)\ **Post date:** [October 29, 2018, 7:33am UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/10 "2018-10-29T07:33:20Z")
What does the under side of those leaves look like? It kind of looks like insect damage based on the first pic but it’s definitely a strange pattern if so. @Niala @garrigan62 I’m sure one of you have seen this before. ---
**Author:** ![SeenDog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seendog/32/230691_2.png) [@SeenDog](https://ilgmforum.com/u/SeenDog)\ **Post date:** [October 29, 2018, 12:30pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/11 "2018-10-29T12:30:51Z")
Im not sure 100% sure on ph…was yellow (6ish). Ppm, no clue. Only water, no food yet. I use deer park spring water. Could this be to heavy? Maybe blocking something? I only water when i see they need water. Last water was on the 25th so 4 days ago. Lighting is 18/6. 20in away. 300w led (135w true). Underside of leaves look good. It looks like i could wash it off…or peel it. I have another girl that looks good but shes older and in different soil. Oh strain is Bubblegum (ilgm) ---
**Author:** ![DoobieNoobie](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/doobienoobie/32/235851_2.png) [@DoobieNoobie](https://ilgmforum.com/u/DoobieNoobie)\ **Post date:** [October 29, 2018, 12:37pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/12 "2018-10-29T12:37:46Z")
Need to get something that actually tells the correct ph. Like this. [https://www.amazon.com/VANTAKOOL-Accuracy-Measurement-Household-Drinking/dp/B0789G7MVP/ref=mp\_s\_a\_1\_3?ie=UTF8&qid=1540816577&sr=8-3&pi=AC\_SX236\_SY340\_QL65&keywords=ph+meter&dpPl=1&dpID=41rDHSz42vL&ref=plSrch](https://www.amazon.com/VANTAKOOL-Accuracy-Measurement-Household-Drinking/dp/B0789G7MVP/ref=mp_s_a_1_3?tag=ilovegrowingm-20) ---
**Author:** ![raustin](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/raustin/32/113556_2.png) [@raustin](https://ilgmforum.com/u/raustin)\ **Post date:** [October 29, 2018, 1:05pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/13 "2018-10-29T13:05:03Z")
It’s a Ph problem. Do you know your Ph? ---
**Author:** ![SeenDog](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/seendog/32/230691_2.png) [@SeenDog](https://ilgmforum.com/u/SeenDog)\ **Post date:** [October 30, 2018, 12:53pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/14 "2018-10-30T12:53:23Z")
Im ordering a digital ph meter…cant find one ina store. I did do a run off test using a fresh water ph tester. Ph was around 6. Girls dont seem to be doing bad just discolored. Pics later. Oh and Thanks to everyone. ---
**Author:** ![Hogmaster](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hogmaster/32/619897_2.png) [@Hogmaster](https://ilgmforum.com/u/Hogmaster)\ **Post date:** [October 30, 2018, 1:33pm UTC](https://ilgmforum.com/t/weird-yellowing-young-plants/24871/15 "2018-10-30T13:33:17Z")
It’s ph and the fox farms is a hot soil so some discoloring is normal but definitely need a ph meter 😉