Cal-Mag needed for Distilled or RO water?

[OsWiZzLe]

do i need to add Cal-Mag to any of these types of water when using Coco?

 

[gaiusmarius]

i would have to say yes you need cal mag and some thing that contains trace elements, unless you find nutrients that are made for use with ro water. canna coco A+B for example are made to be used with tap water. they count on the fact that you have some calcium as well as trace elements in the tap water.

 

[astra007]

cal-mag will not give you all the trace elements. you get calcium, magnesium and iron but not much else like sulphur and zinc. you would be better to get an organic tea blend like kelp which has it all. IMHO.

 

[OsWiZzLe]

I have been using canna nutes with distilled water mixed with RO water...the ppms of the 2 waters mixed is like 15 ppm...is it ok that i'm using canna coco nutes with the mix of RO/Distilled?

 

[gaiusmarius]

it's ok for a while, but sooner or later your plants will show problems. use 50% tap water and 50% ro water, then you still have the trace elements and calcium your plants need. keep the ph at 5.8 and you will have enough mg too this way.

 

[Guest]

Didn't know canna a+b needed to be mixed with tap water... learn something new everyday..

 

[thc43]

if your worried plants arnt getting what they need, Use the canna buffer has cal/mag to buffer coco and flush during the grow, also use the trace mix at low dose in all res mixes..

I use Ro water and dont often need to use these products but would guess that using them early in the grow gives best chances of a trouble free grow..

 

[Guest]

knna that's interesting and nice to know. I used 50/50 tap/RO for my grow and only got into trouble when I tried Cal-Mag+ for a couple of days. I'll check and see how much Ca and Mg A+B provides and think about trying to leave the tap water out of my grow next time. Got decent results this grow though, so I might just not do anything diff, hehe.

Nice to know though.

Peace

 

[Hold Your Fire]

Can I just add dolomite lime to my distilled water for cal/mag?

 

[clowntown]

I had some calcium deficiencies on some of my plants using Canna Coco A+B and tap water that came out at 30-35ppm. Added a little bit of Cal-Mag+ and the problem was solved.

 

[Guest]

Thanks ct. My tap is shitty so I really need to cut it with ro.

Peace

 

[Guest]

Can I just add dolomite lime to my distilled water for cal/mag?

Are you growing in coco? I'd be afraid the pH would rise too much using the dolomite lime seeing as how it raises the pH in acidic soils.

Peace

 

[-VT-]

I have tried several times to eliminate Cal/Mag+ and had issues everytime (documented in several threads here at ICMAG)...Cal/Mag+ is good shit....period. If using low tds source water I suggest you get some if you have Cal/Mag issues or twisting leaves

My friend used dolomite lime in coco as a source of Cal/Mag in a documented thread, here in this coco forum
from the thread
Reclining Buddah - organic soil vs coco - 3 ways

I think the biggest difference from past grows is the inclusion of dolomite lime in the medium... works very well.

peace

 

[Guest]

With Canna A+B, what would be a good amount of Ca Mg to add with EC 0 water?

I dont add any Ca/Mg and my water is below 40ppm, with very little Ca or Mg, and i dont have any problems.

Could your water, as well as everyone else who has success with tap water, have the perfect amount of trace elements to compliment the A+B?

 

[Guest]

I have tried several times to eliminate Cal/Mag+ and had issues everytime (documented in several threads here at ICMAG)...Cal/Mag+ is good shit....period. If using low tds source water I suggest you get some if you have Cal/Mag issues or twisting leaves

My friend used dolomite lime in coco as a source of Cal/Mag in a documented thread, here in this coco forum
from the thread
Reclining Buddah - organic soil vs coco - 3 ways


peace

As many people seem to like Cal-Mag+ as don't. As far as I'm concerned it's the "kiss of death," lol. VT seems to disagree and seems to need to use it. My ec with 50/50 tap/ro is 0.25 and I get severe leaf problems if I use it.

Decide for yourself and good luck.

Peace

 

[f0urtwenty]

I did the mr clean auto dry mod for my water. After 3 waterings, my Strawberry Diesel showed calcium def. THere were orange spots appearing on the leaves starting from the bottom up.

On another plant, Hawaiian Purple, i believe the lack of cal or mag locked out Potassium.

I switched back to tap water and the effects diminished. I then gave them a shot of cal-mag and things are much better again.

I had the same questions. I always wondered if the RO users had to add minerals to their water.

 

[Guest]

To get a true grasp of whats going on, I think we all need to get our water analyzed.. obviously if -VT- needs it, his water is lacking what your 50/50 mix has.. but again, a water analysis will tell us exactly what the deal is..

 

[Hold Your Fire]

I use soilless mix, didn't realize this was the coco coir section until after my post. Sorry!

 

[Ono Nadagin]

I run R/O amd add cal mag in... with out it I have more problems

 

[-VT-]

Cal/Mag+

Cal/Mag+

As many people seem to like Cal-Mag+ as don't. As far as I'm concerned it's the "kiss of death," lol. VT seems to disagree and seems to need to use it. My ec with 50/50 tap/ro is 0.25 and I get severe leaf problems if I use it.

Decide for yourself and good luck.

Peace

Nah...I wouldn't say I disagree....I was speaking from my experience, you shared yours. To disagree with you would be an attack on your credibility, etc....I'm not here for that
Also thread author was asking about low TDS water (RO/Distilled)....not tap/RO mixes....
Moreover, not all tap water is equal, as Indica Sativa eloquently pointed out.

Too make a broad statement saying it's the "kiss of death"...well, I disagree with that assesment....in fact, it's egregious. I have only seen one or two people constantly bang on Cal/Mag+ and Botanicare...

Now, if one says Cal/Mag+ is the "kiss of death with my source water and nutes"...that I can live with.