cal/mag in hydro

baaael

Active Member
do i need to use a cal/mag supplament in hydro and if so at what rates for grow vs bloom
 

Blent

Well-Known Member
do i need to use a cal/mag supplament in hydro and if so at what rates for grow vs bloom
Same rates all the way through if you asked me... You could probably use less up to the first Res change as the plant will be smaller...
And yes you do need to use it. . Especially if you use RO water. It builds strong cellular walls which prevents numerous disease and infection.
 
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HydroRed

Well-Known Member
do i need to use a cal/mag supplament in hydro and if so at what rates for grow vs bloom
I think most general feeds will have the appropriate (or close to) amounts of cal/mag for most average grows. I will however mention I have found a need to supplement depending more so on the lighting I use. I use both HID (HPS & MH) and LED lighting and found the plants that never needed additional magnesium under HID now need it under LED's. The plant will let you know what it needs. If you do end up using magnesium supplements, I start with 2 ml per gallon and give it a cpl days -then adjust from there if needed.
 

baaael

Active Member
Same rates all the way through if you asked me... You could probably use less up to the first Res change as the plant will be smaller...
so it is a necessity? as ive grown in coco for years and never used it and havent had any problems with the growth rates or health that i noticed
 

baaael

Active Member
I think most general feeds will have the appropriate (or close to) amounts of cal/mag for most average grows. I will however mention I have found a need to supplement depending more so on the lighting I use. I use both HID (HPS & MH) and LED lighting and found the plants that never needed additional magnesium under HID now need it under LED's. The plant will let you know what it needs. If you do end up using magnesium supplements, I start with 2 ml per gallon and give it a cpl days -then adjust from there if needed.
i am useing the canna aqua line,looks alittle light green to me atm is all and im 2 weeks into veg,they are growing very fast and look heathly just a tad light in colour
 

Blent

Well-Known Member
so it is a necessity? as ive grown in coco for years and never used it and havent had any problems with the growth rates or health that i noticed
Think it depends on the water you begin with. I had very purple stalks and papery leaves until I began supplimenting calmag as there was none at all in my water. Over a couple of days the purple disappeared and the leaves filled out noticably. It doesn't take much at all... Both calcium and magnesium are key elements in plant growth.. but if it's already in your water then you might be right...
 

baaael

Active Member
Same rates all the way through if you asked me... You could probably use less up to the first Res change as the plant will be smaller...
And yes you do need to use it. . Especially if you use RO water. It builds strong cellular walls which prevents numerous disease and infection.
sorry i didnt read the part where u clearly say YES i do need to use it haha,
No im not using RO water,my water is 100ppm out of the tap
 

TIMtoKILL

Active Member
Typically you will need a Cal/mag if using RO water.(which I recommend)

As for feeding schedule I’ve found that I use between 1-1.5 tsp/gallon for veg and then after week 5 or 6 of flower I cut that in half.
 

baaael

Active Member
ok so this RO water,do i just buy sumthing that plugs onto my tap and the water runs threw it,Are they expenise?
id rather use RO water if its better for the crop than straight tap water
 

Blent

Well-Known Member
ok so this RO water,do i just buy sumthing that plugs onto my tap and the water runs threw it,Are they expenise?
id rather use RO water if its better for the crop than straight tap water
Do you know the ppm of your Tap water that you're using? In many parts of the world RO water is laughed at as the tap water is usually pure enough for it to not be a concern. In my case, water comes from the faucet at 7ppm. I've seen some say theirs is 600... I can understand the use of RO in that case.. anything less than 150ppm I would save the 200bux. It's also important to understand what your water contains and this can be requested or found from your local water treatment plant.
 

Hot Diggity Sog

Well-Known Member
Do you know the ppm of your Tap water that you're using? In many parts of the world RO water is laughed at as the tap water is usually pure enough for it to not be a concern. In my case, water comes from the faucet at 7ppm. I've seen some say theirs is 600... I can understand the use of RO in that case.. anything less than 150ppm I would save the 200bux. It's also important to understand what your water contains and this can be requested or found from your local water treatment plant.
Your tap water is 7 PPM? Wow...you are lucky my friend :)
 

Blent

Well-Known Member
Your tap water is 7 PPM? Wow...you are lucky my friend :)
Yeah man... The perks of living in an alpine environment! Comes straight off the snowpack. Downside is my Vege garden is a struggle.. but I now have 2 greenhouses one of which is mostly hydroponic. I still struggle to bring things like peppers to full maturity. It is nice though to just drag the hose in from outside and fill my res.
 

TIMtoKILL

Active Member
You can by a whole RO system for your house but I was talking RO from dispensers at local grocery stores.
 

baaael

Active Member
Do you know the ppm of your Tap water that you're using? In many parts of the world RO water is laughed at as the tap water is usually pure enough for it to not be a concern. In my case, water comes from the faucet at 7ppm. I've seen some say theirs is 600... I can understand the use of RO in that case.. anything less than 150ppm I would save the 200bux. It's also important to understand what your water contains and this can be requested or found from your local water treatment plant.
mines 100ppm,so forget RO water?
 
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