[Chrono2]

so ive been giving my plants quarter strength nutes and today i noticed 3 (all in different tents oddly) showing signs of what i identify as cal and mag deficiency, ive been giving them quarter strength nutes and that includes the cal mag, obviously i upd the cal mag a little bit for today, but im wondering should i be giving them full strength cal mag always??(the cal mag recommends 1 ml / liter ive been using 5-6ml in a 20 litre batch of water)

[Douglas.Curtis]

Cal mag is salt and nitrogen. Can you boost your nutes, add epsom (which is nothing but beneficial) and use some other non-nitrate/chloride based calcium supplement?

Cal mag is a rather poor quality product.

[maimunji]

Originally Posted by Douglas.Curtis

Cal mag is salt and nitrogen. Can you boost your nutes, add epsom (which is nothing but beneficial) and use some other non-nitrate/chloride based calcium supplement?

Cal mag is a rather poor quality product.

Is there non nitrate calcium supplement? Gypsum? How good is this in coco? Any more info will be great.

[Mikell]

Listening to DC is a great way to wander down the garden path to nowhere.

Quarter strength nutrients is near impossible to quantify without knowing the given strength and starting water qualities. EC is a universal measurement in mS/cm2.

What EC? pH? Frequency of watering? Pictures?

[Chrono2]

Originally Posted by Mikell

Listening to DC is a great way to wander down the garden path to nowhere.

Quarter strength nutrients is near impossible to quantify without knowing the given strength and starting water qualities. EC is a universal measurement in mS/cm2.

What EC? pH? Frequency of watering? Pictures?

dont know ec, but i was around 250 ppm with 3 part micro/gro/bloom + cal mag all 1/4 strength ( 5-6ml / 20 litre)

i upped it to about 7 ml of each and 350 ppm last night and watering everyday to 10% run off, sorry if this doesnt help much but basically what i need to know is should i be cutting back my cal mag at all? in proportion to my other nutes? not at all?

[Chrono2]

i can clearly identify its a mobile deficiency, it matches calcium and magnesium deficiencies, its certainly not just one deficiency, and like i said i have been cutting back my cal mag to 1/4 recommended so i wasnt surprised that it matched up to those two, but what i dont know is how do i prevent it in the future

[RumblefishTwist]

I mean, lets not make this complicated. If your seeing cal/mag deficiency and are feeding at 1/4 bottle recommended strength, it stands to reason that you simply need to bump up your cal mag a little bit.

[Mikell]

I would raise the base to 500ppm and keep the CaMg where you have it.

[SnickleFrits]

How old are the plants? When using just micro and bloom with the head formula it comes out to around 600-700ppm or 1.2-1.4ec depending on start water. I’d say quit fucking with the cal mag period and just up your base to 1.0-1.2ec. If you do that and keep ph in check you will have plenty of cal and mag from just your base

[-BRR-]

Agree with the last two comments. Up your ec to at least 1.0