i am out of ideas what problem this is. please help

I

itsbeenawhile

New Member
i grow in coco perlite. using general hydroponics knock off (in my country it is illegal to import fertilizers without a comercial license). so all we have is homemade brews of nutrients.
the homebrew GH is supposed to be close to the real GH brand, but i dont get what defiency i have now.

i have tried adding epson salts on each other watering thinking it is a magnesium problem. i have tried adding some bloom mix in veg as it also looks to be a potassium defiency.
i water with ph'd water 6ph. i mix nutrients the night before and comfirm ph is stable around 6 the next day before watering.

water is 50/50 tap water/RO water. starts with base EC around 180ec this way.

any one have any ideas what the problem could be?

next should i try a strong rinse of RO water ph'd to 6, strong flush, then nutrient watering next watering?
 

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HydroKid239

HydroKid239

Well-Known Member
Looks like they were on set & forget. Watered with no food. I’ve never fed my plants prison wine so I can’t relate to these issues.
They look very hungry, or overfed enough to lock things out as mentioned above.
 
HydroKid239

HydroKid239

Well-Known Member
I would invest some time & effort in gathering organic materials to use for your grows. It’s better than trusting in some back alley bootlegger. I know when you just gotta do what you gotta do, but I’d rather know what’s going in the soil. Maybe a compost bin to start.
 
coreywebster

coreywebster

Well-Known Member
1.What's the EC of your nutrients when you water?

2.Are you watering to run off every time?

3.How often are you watering?

4.How many crops have you grown previously?

5.What lighting over what space with what hours?

6. What's the temps?
 
I

itsbeenawhile

New Member
coreywebster said:
1.What's the EC of your nutrients when you water?
every other watering around 700 ec. then plain tap/ro water every other watering

2.Are you watering to run off every time?
yes. if water doesnt come out bottom of pot i water more

3.How often are you watering?
every 2 days usually. i lift the pots and see if dry or still heavy full of water

4.How many crops have you grown previously?
4 or 5. last grow didnt have this defiency at all. a little happen mid flower, but nothing like this in veg

5.What lighting over what space with what hours?
mars hydro fc4800 in 100x100 tents. around 50% on the light knob

6. What's the temps?
27 celcuis with lights on. 25-27 lights off. humidity now at 60% ish
Click to expand...
 
I

itsbeenawhile

New Member
HydroKid239 said:
Looks like they were on set & forget. Watered with no food. I’ve never fed my plants prison wine so I can’t relate to these issues.
They look very hungry, or overfed enough to lock things out as mentioned above.
Click to expand...
they are not on set and forget. i check everyday. check if needs watering or not.
nutrients one watering, around 700ec and plain water next watering
 
coreywebster

coreywebster

Well-Known Member
Feed every time in coco.

I'd test your run off in this situation.

I have no idea what 700ppm is because it depends on the scale your using, that's why I only deal with EC.

Feed a weak solution and take some run off and test it. If its super high its a salt build up and needs flushing with a weak solution, not with RO water.
 
HydroKid239

HydroKid239

Well-Known Member
Turning the light down will help. I’ve turned my light down to 15% & added a heating source. Things have turned around for me in the last couple of weeks.
 
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