Calcium?

[SilverSurfer_OG]

Hey there,

I have seen quite a few people here recommend calmag for their coco grows. I havent been able to locate any but i have epsom salts for my mg needs...

Just wondering if you guys know of a good source of calcium that is readily available?

I know dolomite lime has goodly amounts and i was thinking about just dissolving a teaspoon in my watering bottle... Good idea???

 

[-VT-]

Tap water worked for me a while back

 

[The Slickster]

Yes hardwater tap or dolomite, if you have sea shells you can powder those. But most people opt for bone meal which will only raise the PH to a minimal degree. Dolomite on the other hand will raise the PH. Rock phosphate has calcium but I would not recommend or use heavily the white kind available in stores for organic growing what with the high cadmium levels. Gypsum might be used sparingly for a bit of calcium but I do not use it for organics either.

Bone meal in coco will help as coco with holds calcium, and then magnesium. Which epsom salts should be able to provide on a continuos basis as coco is very conductive.

 

[-VT-]

In my case I ran out of Cal/Mag and was broke (as always lol)...so I had to try something. I was running PBP pro "hydro organic" (I know...) and I used E-salts and tap water....if the tap water EC was too high I'd dilute with RO to hit a reasonable baseline EC (.4 -.6 usually is where I was at)....and the plants (except one.... of 20 or so) looked great...

 

[SilverSurfer_OG]

I am growing in pots and just treating the grow as i would soil (except the ph) and my plants are lovin it... except some minor worries.

Organic nutes are all fine i have been assured in various places... except batshit apparently.

I try to get my ph around the 5.8 mark.