Spots on leaves, dying bud tips and buds not tightening

[Taylored]

Please help this is my third grow and things are really going wrong I am growing in coco the temperature is around the 30c lights on and around low 20 lights off I am growing under 600w lights my ph is between 5.0 and 6.0. Things are going really wrong I have had one grow and had to get rid of my plants at the end the leaves all browned and died some bud tips browned and died as well also they did not harden or tighten up now it's looking like my next grow is doing the same.
Any help would be great

 

[Lerugged]

Looks like your temps are on the high side for indoor growing. Maybe the nutes are burning her up?
Is it fresh coco? As in not the same from your last grow?

 

[Pepperhead]

What strain is it ?
Looks like a sativa which so sometimes will have siry buds
Have all grows been the same strain?

 

[Buds Buddy]

Do you have any pests,gnats, etc. ? Have you fed nutrients every feeding ? (2-3 times per day) (Not just water? Your pH is low. Coco should be around 5.8 pH during Veg & in Flower you go up to about 6.2 until the last 2 weeks & then back to 5.8.
I'm not sure about your temps as I don't know the U.S. conversion. I can say the temps should be around 77 F. Even the low 80's wont hurt it as I've grown all the way through in the low 80's in the past.
It's that 4th pic that worries me. Almost looks like mold is forming. If it is your Humidity was probably too high & possibly not enough air circulation.
Some of the pics don't look too bad.
The other thing is... Did you use Cal Mag in every feeding. Those spots are Mag Def. Coco uses a lot of Cal Mag. I use 2-ml. per gallon every time I mix nutes.

 

[Taylored]

Looks like your temps are on the high side for indoor growing. Maybe the nutes are burning her up?
Is it fresh coco? As in not the same from your last grow?

Looks like your temps are on the high side for indoor growing. Maybe the nutes are burning her up?
Is it fresh coco? As in not the same from your last grow?

Yes it's fresh coco do you think I should flush? If so how long do you think I should flush for

 

[Taylored]

Do you have any pests,gnats, etc. ? Have you fed nutrients every feeding ? (2-3 times per day) (Not just water? Your pH is low. Coco should be around 5.8 pH during Veg & in Flower you go up to about 6.2 until the last 2 weeks & then back to 5.8.
I'm not sure about your temps as I don't know the U.S. conversion. I can say the temps should be around 77 F. Even the low 80's wont hurt it as I've grown all the way through in the low 80's in the past.
It's that 4th pic that worries me. Almost looks like mold is forming. If it is your Humidity was probably too high & possibly not enough air circulation.
Some of the pics don't look too bad.
The other thing is... Did you use Cal Mag in every feeding. Those spots are Mag Def. Coco uses a lot of Cal Mag. I use 2-ml. per gallon every time I mix nutes.

30c works out to be around 86f we can't get cal mag here but I use a product called CMX witch is higher in mag iron potassium and Zink I only feed once every two days I have fan running air in and out no pest that I have seen

 

[Taylored]

What strain is it ?
Looks like a sativa which so sometimes will have siry buds
Have all grows been the same strain?

Yes it's a sativa that the buds don't close up first grow with them I got 7o's per plants this grow I got 0 of usable buds

 

[bluter]

lot of scattered info..

back up a sec and give us a proper run down
read this and come back to this thread with the info all in one post

have a couple ideas but without knowing more it's just spitballing

 

[Buds Buddy]

30c works out to be around 86f we can't get cal mag here but I use a product called CMX witch is higher in mag iron potassium and Zink I only feed once every two days I have fan running air in and out no pest that I have seen

Well your pH is too low, temps high & you aren't feeding nowhere near enough. You can not over water Coco & you never let it dry out. You need to feed at least twice per day til run off & make sure your run off pH is close to the pH'd nutes you put in.
Hey, @Old Salt , @farside05 , care to chime in ?

 

[Old Salt]

Environment can easily do it. Too much light or wind will dry the tops of your plants. Too low humidity will compound the problem. Too high a temperature will affect your grow, although I've had success up to extended day time highs of 38°C / 100°F and humidity around 90%.

Nutrients can also cause problems. Not knowing exactly what you are using and feeding, I cant comment on this possibility.

Pests are another concern that can cause problems. Sooner or later we all have to deal with them.

I grow in coco/perlite using drain-to-waste hydroponics in DIY 11l / 3.8 US gal fabric grow bags. I transplant into these from 10cm / 4" nursery pots. Every watering is done with a nutrient solution, and continues until I get between 10% and 20% run off. I start with about 250 ml of my nutrient solution, once per day, and let my run off decide the increases. Once I hit 500ml or a pint I go to twice per day and drop back with the volume. When that reaches 500ml per feed I go to three times per day, and just keep increasing the volume, not stopping at 500ml. It is usually capped at about 750ml / three cups per watering, and drops as I approach harvest. It's a lot of work, so I built an automatic watering system to handle it.

I've used General Hydroponics' Flora Trio and Supplements. I switched to Mega Crop for my current grow. I can answer question about them from experience. Other nutrients will require some research.

 

[Taylored]

Environment can easily do it. Too much light or wind will dry the tops of your plants. Too low humidity will compound the problem. Too high a temperature will affect your grow, although I've had success up to extended day time highs of 38°C / 100°F and humidity around 90%.

Nutrients can also cause problems. Not knowing exactly what you are using and feeding, I cant comment on this possibility.

Pests are another concern that can cause problems. Sooner or later we all have to deal with them.

I grow in coco/perlite using drain-to-waste hydroponics in DIY 11l / 3.8 US gal fabric grow bags. I transplant into these from 10cm / 4" nursery pots. Every watering is done with a nutrient solution, and continues until I get between 10% and 20% run off. I start with about 250 ml of my nutrient solution, once per day, and let my run off decide the increases. Once I hit 500ml or a pint I go to twice per day and drop back with the volume. When that reaches 500ml per feed I go to three times per day, and just keep increasing the volume, not stopping at 500ml. It is usually capped at about 750ml / three cups per watering, and drops as I approach harvest. It's a lot of work, so I built an automatic watering system to handle it.

I've used General Hydroponics' Flora Trio and Supplements. I switched to Mega Crop for my current grow. I can answer question about them from experience. Other nutrients will require some research.

Thank you

 

[Taylored]

Thank you

Can I use an air con unit in the space to bring temp down? They have been six weeks in flower if I Change everything could I bring the buds back or they to fare

 

[Old Salt]

Some plants may come back, but the rest appear too far gone.

Bluter has it right:

lot of scattered info..

back up a sec and give us a proper run down
read this and come back to this thread with the info all in one post

have a couple ideas but without knowing more it's just spitballing

 

[Taylored]

Some plants may come back, but the rest appear too far gone.

Bluter has it right:

Bugger even this one

 

[Old Salt]

Bugger even this one

That probably will come back

 

[Taylored]

That probably will come back

Thank you for your help do you think I should flush ? because they are getting spots on them

 

[Old Salt]

There's too much about your grow that I don't know to give a valid answer.

How to Ask for Grow Support

 

[Taylored]

Ok what else can I tell you?

 

[Buds Buddy]

They mostly need info like what nutrients you feed, how much of each nutrient or additive you add, how often you feed so they can see if your NPK is off,etc. The type & watts of your lights, the size of your grow area, your day & night temps highs & lows, RH highs & lows, Auto's or fems, or regular seeds, pH going in & out,etc. All these things are variables that can effect your plants. So for someone to determine exactly what the problem is they need the info. Sure there are some things you can spot without all the info. But sometimes one problem looks similar to a different problem; but you can't say 100% without all the info. I know there's a chart / form on this site somewhere that you can fill out the questions & then all kinds of people will have answers for you that are a lot more accurate.
Are your plants Fems or Auto's ? I was thinking if they are fems & you really want to grow these plants you could chop off all the bud & some branches & leaves & re-veg the plants. You would have to flush & start feeding from scratch. Kind of a Do-Over.
I've re-vegged plants after I harvested before. Takes about 2 weeks & they start growing again. Can't do that with Auto's though.

 

[Taylored]

They mostly need info like what nutrients you feed, how much of each nutrient or additive you add, how often you feed so they can see if your NPK is off,etc. The type & watts of your lights, the size of your grow area, your day & night temps highs & lows, RH highs & lows, Auto's or fems, or regular seeds, pH going in & out,etc. All these things are variables that can effect your plants. So for someone to determine exactly what the problem is they need the info. Sure there are some things you can spot without all the info. But sometimes one problem looks similar to a different problem; but you can't say 100% without all the info. I know there's a chart / form on this site somewhere that you can fill out the questions & then all kinds of people will have answers for you that are a lot more accurate.
Are your plants Fems or Auto's ? I was thinking if they are fems & you really want to grow these plants you could chop off all the bud & some branches & leaves & re-veg the plants. You would have to flush & start feeding from scratch. Kind of a Do-Over.
I've re-vegged plants after I harvested before. Takes about 2 weeks & they start growing again. Can't do that with Auto's though.

Wow thank you for that I will get the information together and write it all down thanks again