# Am I dealing with nute burn? **URL:** \ **Category:** Troubleshooting\ **Tags:** nutes, autoflower, indoor-grow\ **Created:** [October 27, 2021, 1:33am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419 "2021-10-27T01:33:23Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![djfo77](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@djfo77](https://ilgmforum.com/u/djfo77)\ **Post date:** [October 27, 2021, 1:33am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/1 "2021-10-27T01:33:23Z")
I’m in week 3 of auto flower. I feel like I’ve gone pretty light on the nutes, but maybe I overdid it with Big Boom. I tried using it on every water session this grow. In the past, I’ve used it every other water session. I already went ahead and flushed with about 10 gal of water, but I wanted to see what you guys thought. ![1026212011a_HDR](https://global.discourse-cdn.com/growingmarijuana/original/4X/7/9/3/79317c90bacdc1fe13abc498b25c2cb781018b3b.jpeg) ![1026212011](https://global.discourse-cdn.com/growingmarijuana/original/4X/e/7/b/e7b11434498d6d1ca12ca083db0f9759245387ca.jpeg) ---
**Author:** ![Deepsix](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/deepsix/32/855169_2.png) [@Deepsix](https://ilgmforum.com/u/Deepsix)\ **Post date:** [October 27, 2021, 1:38am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/2 "2021-10-27T01:38:36Z")
Looks like a calcium deficiency have you given her any cal-mag? ---
**Author:** ![djfo77](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@djfo77](https://ilgmforum.com/u/djfo77)\ **Post date:** [October 27, 2021, 1:45am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/3 "2021-10-27T01:45:43Z")
No I depend on my hard water for calcium and magnesium. It has always been adequate in the past. On my first grow, I used RO water and got calcium deficiency, I was able to fix it by using my tap water. Maybe the city has decreased it. ---
**Author:** ![Kingkupa](https://avatars.discourse-cdn.com/v4/letter/k/9e8a1a/32.png) [@Kingkupa](https://ilgmforum.com/u/Kingkupa)\ **Post date:** [October 27, 2021, 2:27am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/4 "2021-10-27T02:27:56Z")
![image](https://global.discourse-cdn.com/growingmarijuana/original/4X/1/9/1/19176649788c8c6bcfe93fd68aed160fd606cfc1.jpeg) ![image](https://global.discourse-cdn.com/growingmarijuana/original/4X/6/7/a/67ad59b7f24ea844e5f2fb8f9a816287dd8c5b4d.jpeg) ---
**Author:** ![Kingkupa](https://avatars.discourse-cdn.com/v4/letter/k/9e8a1a/32.png) [@Kingkupa](https://ilgmforum.com/u/Kingkupa)\ **Post date:** [October 27, 2021, 2:30am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/5 "2021-10-27T02:30:15Z")
Ph ppm of water with Nutes going in? You have any run off # from when you flushed ? Looks like cal mag but you might have other things going on as well. What kind of soil ? 3 weeks flower ? 3 weeks from sprout ? ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [October 27, 2021, 2:35am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/6 "2021-10-27T02:35:10Z")
Going to need runoff numbers. You can’t burn your plants with big bloom unless you dump the whole bottle in your soil without diluting it. ---
**Author:** ![djfo77](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@djfo77](https://ilgmforum.com/u/djfo77)\ **Post date:** [October 27, 2021, 10:27am UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/7 "2021-10-27T10:27:03Z")
Runoff pH was 6.5. I fed with 0.5tsp of Tiger Bloom and 2Tbsp Big Bloom in a gallon about 9 days ago. I’ve watered once since then, and I skipped the Big Bloom because I started noticing the spots. ---
**Author:** ![djfo77](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@djfo77](https://ilgmforum.com/u/djfo77)\ **Post date:** [October 27, 2021, 12:31pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/8 "2021-10-27T12:31:08Z")
Upon further inspection, I think my pH probe is bad. It is not calibrating correctly with the buffers. ---
**Author:** ![Mr\_Wormwood](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/mr_wormwood/32/612861_2.png) [@Mr\_Wormwood](https://ilgmforum.com/u/Mr_Wormwood)\ **Post date:** [October 27, 2021, 12:43pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/9 "2021-10-27T12:43:26Z")
Well while not a good thing, it’s good that you detected it and can replace ---
**Author:** ![ReelOfishalTrees](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/reelofishaltrees/32/813722_2.png) [@ReelOfishalTrees](https://ilgmforum.com/u/ReelOfishalTrees)\ **Post date:** [October 27, 2021, 12:50pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/10 "2021-10-27T12:50:07Z")
> [@djfo77](#): > > Runoff pH was 6.5. I fed with 0.5tsp of Tiger Bloom and 2Tbsp Big Bloom in a gallon about 9 days ago Depending on your pot size, I would say at that stage of the plants life it will be drinking more than a gallon of water every 9 days, more like every 2 to 5 days. Have you felt the weight of the pot to see how light it is lately(before flush)? Also since you just flushed it I would definitely give it a feed and some calmag and test your run off numbers. ---
**Author:** ![djfo77](https://avatars.discourse-cdn.com/v4/letter/d/df788c/32.png) [@djfo77](https://ilgmforum.com/u/djfo77)\ **Post date:** [October 27, 2021, 2:05pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/11 "2021-10-27T14:05:12Z")
Yeah I watered once between today and the last 9 days, I just didn’t give any nutes during that water. ---
**Author:** ![ReelOfishalTrees](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/reelofishaltrees/32/813722_2.png) [@ReelOfishalTrees](https://ilgmforum.com/u/ReelOfishalTrees)\ **Post date:** [October 27, 2021, 2:07pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/12 "2021-10-27T14:07:25Z")
If you are watering and not feeding you definitely need to add some calmag to your water and make sure you are adjusting the PH ---
**Author:** ![Kingkupa](https://avatars.discourse-cdn.com/v4/letter/k/9e8a1a/32.png) [@Kingkupa](https://ilgmforum.com/u/Kingkupa)\ **Post date:** [October 27, 2021, 2:15pm UTC](https://ilgmforum.com/t/am-i-dealing-with-nute-burn/77419/13 "2021-10-27T14:15:19Z")
Yup agree with above definitely get some and add some cal mag. That’s what she is showing most of. Also if using something like this, get rid of it. Try to use one of these for my blueberry, killed them, awful, got a ph and ppm pen # Indoor & Outdoor Use (Green) 1. [ ![SONKIR Soil pH Meter, MS02 3-in-1 Soil Moisture/Light/pH Tester Gardening Tool Kits for Plant Care, Great for Garden, Lawn, Farm, Indoor Outdoor Use (Green)|pxxpx](https://global.discourse-cdn.com/growingmarijuana/original/4X/a/a/1/aa14fa9a29ad013ed80587992253e83881f9ddfd.jpeg) ](https://www.amazon.com/Sonkir-Soil-Moisture-Tester-Gardening/dp/B07BR52P26?tag=ilovegrowingm-20#)