Auto white widow help please!!!!!

15 days old under 450w led veg light. Dwc ph at 5.8-6.1 ppms at about 450 with

3ml armour si per gallon added first
5ml calmag per gallon added second
5ml total of GH micro,gro,bloom. Added third

Last two days they look sad and a bit of spots and yellowing.

4gallon rez. Temp is 72.3f 43% humidity rez water temp at 71.2f.

Rez was changed 4 days ago.

drakodreak25 said:

15 days old under 450w led veg light. Dwc ph at 5.8-6.1 ppms at about 450 with

3ml armour si per gallon added first
5ml calmag per gallon added second
5ml total of GH micro,gro,bloom. Added third

Last two days they look sad and a bit of spots and yellowing.

4gallon rez. Temp is 72.3f 43% humidity rez water temp at 71.2f.

Rez was changed 4 days ago.

Click to expand...

res is a little warm, try to chill at or below 65f. 5ml total of gh3 isn't enough for them to even get a taste. normally you'd go 5ml micro, 5ml gro, 5ml bloom (in that order) per gallon for seedlings. time to go veg mode. 10ml micro, 15ml gro, 5ml bloom (in that order) per gallon. also, gh needs to be the FIRST thing in the res, as it combines and buffers, anything else is additive and should be mixed in after gh3 is fully mixed.

they look fine, just hungry. go veg strength (keep the cal/mag) and you should get explosive growth in less than a week.

your humidity might be an issue too, it's a little low, but not unworkable...

drakodreak25 said:

15 days old under 450w led veg light. Dwc ph at 5.8-6.1 ppms at about 450 with

3ml armour si per gallon added first
5ml calmag per gallon added second
5ml total of GH micro,gro,bloom. Added third

Last two days they look sad and a bit of spots and yellowing.

4gallon rez. Temp is 72.3f 43% humidity rez water temp at 71.2f.

Rez was changed 4 days ago.

Click to expand...

Im lucky too feed that ppms in flower on my auto's, im on day 43 and there recieving 107 ppm tap water, all green and huge, i tried feeding and burnt em at 180 ppms, your auto's are soldiers

cat of curiosity said:

res is a little warm, try to chill at or below 65f. 5ml total of gh3 isn't enough for them to even get a taste. normally you'd go 5ml micro, 5ml gro, 5ml bloom (in that order) per gallon for seedlings. time to go veg mode. 10ml micro, 15ml gro, 5ml bloom (in that order) per gallon. also, gh needs to be the FIRST thing in the res, as it combines and buffers, anything else is additive and should be mixed in after gh3 is fully mixed.

they look fine, just hungry. go veg strength (keep the cal/mag) and you should get explosive growth in less than a week.

your humidity might be an issue too, it's a little low, but not unworkable...

Click to expand...

Thanks for the quick response. And I've just read but first time dwc grow, that you want to go real light on the nutes. Also I forgot to say I'm using ro water, so zero ppms to start and everything I've read including the bottle armour si says to go in first is this wrong with ro dwc? Should I do a full rez change? Or just add the nutes?

PURPLEB3RRYKUSH said:

Im lucky too feed that ppms in flower on my auto's, im on day 43 and there recieving 107 ppm tap water, all green and huge, i tried feeding and burnt em at 180 ppms, your auto's are soldiers

Click to expand...

My water here is over 670 ppms super bad water so I us ro. I start at zero.

drakodreak25 said:

Thanks for the quick response. And I've just read but first time dwc grow, that you want to go real light on the nutes. Also I forgot to say I'm using ro water, so zero ppms to start and everything I've read including the bottle armour si says to go in first is this wrong with ro dwc? Should I do a full rez change? Or just add the nutes?

Click to expand...

wait until res change, then go up to veg nutes. dwc is a hog pen, plants are bursting with uptake due to availability and DO. i generally get up to 3000ppms at the height of flower with gh3, cal/mag, and a booster in dwc. if it burns, draw some of the res out and top off with ro. gh buffers to 6.0 so ph should be fine.

always add base nutes first (gh3 in this case) chelation occurs and the nutes stabilize and buffer.

a good idea in dwc is to feed as much as they can take. up the dosage every res change til you get hints of burning, then back off just a bit and keep it steady. build up as they bush out.

PURPLEB3RRYKUSH said:

Im lucky too feed that ppms in flower on my auto's, im on day 43 and there recieving 107 ppm tap water, all green and huge, i tried feeding and burnt em at 180 ppms, your auto's are soldiers

Click to expand...

depends on the food.

cat of curiosity said:

wait until res change, then go up to veg nutes. dwc is a hog pen, plants are bursting with uptake due to availability and DO. i generally get up to 3000ppms at the height of flower with gh3, cal/mag, and a booster in dwc. if it burns, draw some of the res out and top off with ro. gh buffers to 6.0 so ph should be fine.

always add base nutes first (gh3 in this case) chelation occurs and the nutes stabilize and buffer.

a good idea in dwc is to feed as much as they can take. up the dosage every res change til you get hints of burning, then back off just a bit and keep it steady. build up as the bush out.

Click to expand...

Not sure if that gives me the answers I need. I already changed my rez 4 days ago, and at that point I added GH3 with armour si and calmag. So should I rechange the rez and bump the ppms to almost a 1000 like you said with like 10-15 ml of gh3?

drakodreak25 said:

Not sure if that gives me the answers I need. I already changed my rez 4 days ago, and at that point I added GH3 with armour si and calmag. So should I rechange the rez and bump the ppms to almost a 1000 like you said with like 10-15 ml of gh3?

Click to expand...

you should be changing res every 5-7 days

so change tomorrow.

and gh has directions on the bottles. ALWAYS mix in micro first, stir well, then grow, then bloom. the three parts come together to make a total nutrient (although it lacks calcium and magnesium unless you have hard water).

veg strength is:

3-2-1

which means 3 teaspoons (15ml) grow per gallon
2 teaspoons (10ml) per gallon micro
and 1 teaspoon (5ml) per gallon bloom

that's per gallon, not total.

also remember, micro first, then gro, then bloom. seems odd, but if you don't mix in that order it will fallout into unusable salt slime. add cal/mag AFTER gh3 is fully mixed.

check ppms AFTER you mix to get an idea of where you are, so you can check the res and see how much they eat. ppms go up, they're drinking. ppms go down, they are eating. and they WILL eat in dwc...

you're on four days res right now, change res tomorrow with this formula. your plants will skyrocket.

what size is your res?

cat of curiosity said:

you should be changing res every 5-7 days

so change tomorrow.

and gh has directions on the bottles. ALWAYS mix in micro first, stir well, then grow, then bloom. the three parts come together to make a total nutrient (although it lacks calcium and magnesium unless you have hard water).

veg strength is:

3-2-1

which means 3 teaspoons (15ml) grow per gallon
2 teaspoons (10ml) per gallon micro
and 1 teaspoon (5ml) per gallon bloom

that's per gallon, not total.

also remember, micro first, then gro, then bloom. seems odd, but if you don't mix in that order it will fallout into unusable salt slime. add cal/mag AFTER gh3 is fully mixed.

you're on four days res right now, change res tomorrow with this formula. your plants will skyrocket.

Click to expand...

Thanks for that, it is how I was adding those but my question was also about armour si aka sicilia says to add to ro water before anything else is added. Any thoughts on that as it has a very high ph. Also I've seen it added last and it gels up real bad.

cat of curiosity said:

what size is your res?

Click to expand...

5 gallons buckets 6" net pots with hydroton. Have about 4 gallons of water in them.

drakodreak25 said:

Thanks for that, it is how I was adding those but my question was also about armour si aka sicilia says to add to ro water before anything else is added. Any thoughts on that as it has a very high ph. Also I've seen it added last and it gels up real bad.

Click to expand...

not sure why you would use silica before flower, it's not necessary. but if that's the case i would add to one gallon of water while making the gh3. once the 3g of gh3 is mixed, mix silica gallon into it.

you will measure for 4 gallons in 5g buckets, so veg strength will be:
40ml micro
60ml gro
20ml bloom
PER BUCKET

in that order. mix each one fully before adding the next to avoid fallout.

honestly, the silica isn't needed, i don't use it and would not recommend it. a good potassium boost in flower makes a difference, but i would not add silicone to an otherwise healthy system.

make sure you mix gh3 into water, never mix undiluted.

Oh I read that since I use ro water there is nothing in it and that armour si throughout the whole grow is needed. Do you use ro water and have no issues without it? If so do I just do the gh3 first then calmag and call it good? You are a big help man that's for taking the time


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Ok cat of curiosity I mixed my new water this morning and I got 1100ppm with the directions you gave me. I'll give an update in a few days and let you know how it goes. Left out the armour si and only did gh3 and calmag.

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