After taking from GWE all these years, I want to try to give a little something back. My last four or five grows, different strains, have all developed the same issue. Brown/bronze spots on leaves that get progressively worst. I have pulled my hair out searching for the cause but think I may have stumbled across the reason. I grow in coco and have been using nebula Haze feeding schedule and kept getting what looked like leaf Sephora, phosphorus or calcium deficiency. I use tap water (after sitting out a few days) and it struck me that calcium in tap water doesn't appear to be taken into account. Tap water "hardness" varies greatly from region to region, so along with my GH nutrients (which has some ca/mg), I have been adding 1 tsp of ca/ma per gallon of water and get what appears to be a calcium deficiency. I stopped adding ca/mg supplement a couple of weeks ago and everything looks great. This is by no means a scientific answer but I have seen others with similar issues. Perhaps Sirius Fireside or nebula Haze can add more enlightenment!
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DIY grow space 2.5' X 3.5' X 6.5'
315 LEC
6" Vortex exhaust fan w/speed control
6" Carbon filter
3- 6" fans
humidifier
temp and humidity gauge
5 gal smart pots w/ FFOF soil
FF trio nutrients -
Well done at looking for culprit. I also have high cal in my well water, i use to have the same issue when i used a suppliment food with calcium. Now i don't use any or it has very little. Issue also went away.Smoke Ganja create Peace Respect Nature don't trash the Planet
Soil grower with coco/perlite mixed in
indoor/outdoor grower
1 36"x36"x66" tent- Viparspectra P2500
1 3x3x6 tent- used in late spring for seedlings both veggies & weed. I have 2 viparspectar 450r for that tent.
I use a t-5 & 54watt CFL for seedlings
Sometimes i use plastic sometimes i use fabric grow containers
Currently using fish/guano during veg growth & FF Grow Big 6-4-4 teens to bloom. Once i see pre-flower i switch to
Age Old Organics Bloom 5-10-5
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That's good the hear SoOrbudgal! I finally saw some photos of ca toxicity and it looks similar to ca deficiency and I knew that wasn't the issue!DIY grow space 2.5' X 3.5' X 6.5'
315 LEC
6" Vortex exhaust fan w/speed control
6" Carbon filter
3- 6" fans
humidifier
temp and humidity gauge
5 gal smart pots w/ FFOF soil
FF trio nutrientsComment
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Good catch. I try not to panic and do something weird until I know for sure what's ailing the girls. I had my own mystery spotting problem this fall. I forgot that I'd aimed my fan low to discourage thrips and the spots were windburn and not a toxicity or deficiency.Coconut Grove
4x4 tent, Platinum LED P4-XML2, four Patio Pickers. Vegging Liberty Haze, Acapulco Gold, Lavender and Sweet Amnesia Haze.
3x3 tent, Platinum P300 LED. Flowering two Tangies.
Flower tent:
4x4 tent, Platinum LED P4-XML2, four Patio Pickers. Vegging Super Lemon Haze, Durban Poison and two Tangie x Blueberry crosses.
Nursery:
32"x32" tent with Feit white LED. Vegging four Mother's Finest.
Coco/Perlite/worm castings/mycorrhizae living soil mix.
Down-To-Earth dry amendments. Gnarly Barley added weekly. Eisenia fetida.
On deck: Winter indicas.Comment
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Thanks UndergroundFarmer. It was driving me crazy and taking the fun out of growing. Ca toxicity and deficiency look similar, kinda like over/under watering.DIY grow space 2.5' X 3.5' X 6.5'
315 LEC
6" Vortex exhaust fan w/speed control
6" Carbon filter
3- 6" fans
humidifier
temp and humidity gauge
5 gal smart pots w/ FFOF soil
FF trio nutrientsComment
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What I meant was over/under watering symptoms can look similar to each other, not like ca toxicity...DIY grow space 2.5' X 3.5' X 6.5'
315 LEC
6" Vortex exhaust fan w/speed control
6" Carbon filter
3- 6" fans
humidifier
temp and humidity gauge
5 gal smart pots w/ FFOF soil
FF trio nutrientsComment
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