Cal-mag Questions

[29menace]

Hi guys. If you were running hydro with R/o water that has virtually 0ppm what amount of cal-mag would you add? What's your base ppm before adding nutes. Just wanna get a rough idea so I can calculate how much I need to buy for my next grow.

I basically ran tap until now with some filtered but this grow I'm solely using filtered to see the difference.

Thanks for all replies it's appreciated

 

[Doug Dawson]

Hi guys. If you were running hydro with R/o water that has virtually 0ppm what amount of cal-mag would you add? What's your base ppm before adding nutes. Just wanna get a rough idea so I can calculate how much I need to buy for my next grow.

I basically ran tap until now with some filtered but this grow I'm solely using filtered to see the difference.

Thanks for all replies it's appreciated

I believe around 2 to 2.5ml per gallon.

 

[myke]

150ppm is what i use with tap.

 

[29menace]

I believe around 2 to 2.5ml per gallon.

Hi, do you know the Ec that I'm aiming for or ppms?

 

[29menace]

150ppm is what i use with tap.

With tap? Your ppm in the tap water must be low yes? Mine has an EC of 0.6 hence the filter system this run lol.

 

[jondamon]

With tap? Your ppm in the tap water must be low yes? Mine has an EC of 0.6 hence the filter system this run lol.

If you’re adding back Ca and Mg after Ro filtration then you want between 0.2-0.4EC added back.

 

[29menace]

If you’re adding back Ca and Mg after Ro filtration then you want between 0.2-0.4EC added back.

Thankyou buddy

 

[myke]

With tap? Your ppm in the tap water must be low yes? Mine has an EC of 0.6 hence the filter system this run lol.

Yes my tap is about 100 ppm.