potassium deficiency?

Cvntcrusher

Well-Known Member
plants are 40d old in 5g fabs
ffof medium
haven’t fed them yet
water when dry
temps are steady 80°F rh 55%
i just don’t see how this is a potassium deficiency so soon.

any ideas? a couple these have the same issue. all the same plants as well.

also, my water… well water.. smells like sulfur when it first starts running. it’s a lot less now that we’ve been using the water for a month. running for an hour a day almost when we come in before we use it. but does this mean there is sulfur in my water? and what can i do? will this harm my plants? 35ECD490-2DDF-467C-BD72-622E6F6A511C.jpeg05A8E95B-2D16-489D-A2F2-EFF337984092.jpeg156C1565-2CFC-44CA-B0E7-F86E6B3749B5.jpegB16B1C3D-AB84-422C-B71D-A39DF0B58F0C.jpegF45DCB0D-EB50-4105-BBEF-F6CC507D3296.jpeg
 

Bushbaby11

Well-Known Member
plants are 40d old in 5g fabs
ffof medium
haven’t fed them yet
water when dry
temps are steady 80°F rh 55%
i just don’t see how this is a potassium deficiency so soon.

any ideas? a couple these have the same issue. all the same plants as well.

also, my water… well water.. smells like sulfur when it first starts running. it’s a lot less now that we’ve been using the water for a month. running for an hour a day almost when we come in before we use it. but does this mean there is sulfur in my water? and what can i do? will this harm my plants? View attachment 5172595View attachment 5172596View attachment 5172597View attachment 5172598View attachment 5172599
Give them a feed, don't over feed them trying to make up for time lost though!!
They need calcium, use calmag
 

PadawanWarrior

Well-Known Member
plants are 40d old in 5g fabs
ffof medium
haven’t fed them yet
water when dry
temps are steady 80°F rh 55%
i just don’t see how this is a potassium deficiency so soon.

any ideas? a couple these have the same issue. all the same plants as well.

also, my water… well water.. smells like sulfur when it first starts running. it’s a lot less now that we’ve been using the water for a month. running for an hour a day almost when we come in before we use it. but does this mean there is sulfur in my water? and what can i do? will this harm my plants? View attachment 5172595View attachment 5172596View attachment 5172597View attachment 5172598View attachment 5172599
I'd be sketchy about the water if it smells like sulfur. Do you know the TDS? You might want to get a water report.

I'm on well water, but it's about 150 ppm. Mostly Ca is my guess. Clean and tastes good. No smells or anything. And I'm crazy about the taste of water. In SD I had to get a water dispenser because I like clean water. I was spoiled growing up in the PNW with awesome water.
 

xtsho

Well-Known Member
You should get your well water tested so you know what's in it. Sulfur is used to lower the pH of soil and sulfuric acid is used by some as a pH down. Too much can lockout other nutrients. It is rare to have an excess of sulfur but if you're using well water and you're actually smelling it then you might be one of those rare cases. What's the pH of the well water?
 

Cvntcrusher

Well-Known Member
You should get your well water tested so you know what's in it. Sulfur is used to lower the pH of soil and sulfuric acid is used by some as a pH down. Too much can lockout other nutrients. It is rare to have an excess of sulfur but if you're using well water and you're actually smelling it then you might be one of those rare cases. What's the pH of the well water?
i was told the hot water heater could have a buildup and when the water comes through the hot water heater it’s the cause of the smell. idk i’ll be check the PH of the water tomorrow. and i just ordered PH up and down
 
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TCH

Well-Known Member
i was told the hot water heater could have a buildup and when the water comes through the hot water heater it’s the cause of the smell. idk i’ll be check the PH of the water tomorrow. and i just ordered PH up and down
This is the case at our house. There is a rod in the water heater that does something and I can not remember exactly. Basically, you can remove that rod and it will help with that smell. That said, its not a bad idea to have a sample of the water tested by the local co-op so you know exactly what is going on. Does your water smell when you use the cold water as well or just the warm water?
 

curious2garden

Well-Known Mod
Staff member
This is the case at our house. There is a rod in the water heater that does something and I can not remember exactly. Basically, you can remove that rod and it will help with that smell. That said, its not a bad idea to have a sample of the water tested by the local co-op so you know exactly what is going on. Does your water smell when you use the cold water as well or just the warm water?
It's the sacrificial anode. If you're smelling S it it's time to replace it, not remove it. If you remove it and don't replace it the water heater itself will start eroding vs your sacrificial anode.
 
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