First time grower need help

[MiHomeGrown]

Hi everyone,

First time growing and I am running into issues with what seems to be calcium deficiency. Most likely due to low Ph, I believe.

My problem is that I cannot get my ph to come up on these plants. I have flushed with tap water. Ours is 7.0 at the tap and average analysis is 205ppm. 2 gallons of water through 3-1 gallon pots. Maybe I didn’t do enough? I switched to nutes at 1/8 strength and have flushed at least 5 gallons over 2 days through them with no luck raising ph in the coco. I’m using a soil ph meter and getting as low as 4.9 this morning on one plant.

Growing in coco/ perlite. Using fox farm nutes (grow big, big bloom, tiger bloom). I have even tried cal mag and water with no luck.

2 of these plants are 29 days into bloom and I don’t want to lose anymore harvest than I’m already going to.

A little broke at the moment as well so any home remedies are greatly appreciated!

Current conditions:
36x24x53 grow tent
Vivosun 400w super hps
80 degrees / 46% RH daytime
73 degrees /55-60% RH night
Water 3 times daily with 1/4 strength fox farm nutes stated above.

Thanks for any insight to help fix this.

 

[Aqua Man]

@Enforcer ... Told I was gonna lol.

Don't panic I could be wrong but it's kinda looking like an actual case of leaf septoria

 

[MiHomeGrown]

I certainly hope it isn’t. In my mind it feels like it is possible there are more than one causes here. The spots started on perfectly green leaves Saturday. Only on one plant. That plant had a ph in the coco of 5.0 (in the pics it’s the worst looking of them all - upper left). The newest one started yesterday and had a ph of 5.2. That’s when the flushing started. I am wondering if I locked them out accidentally...leading to cal def ...necrosis and that necrosis is giving a place for fungus to now take over...maybe i am overthinking.

 

[Aqua Man]

I certainly hope it isn’t. In my mind it feels like it is possible there are more than one causes here. The spots started on perfectly green leaves Saturday. Only on one plant. That plant had a ph in the coco of 5.0 (in the pics it’s the worst looking of them all - upper left). The newest one started yesterday and had a ph of 5.2. That’s when the flushing started. I am wondering if I locked them out accidentally...leading to cal def ...necrosis and that necrosis is giving a place for fungus to now take over...maybe i am overthinking.

It is possible it's a calcium due to ph especially at that ph. Kinda looking darker than that to me. Usually when I see calcium it's lighter brown. You may need someone with more experience @MIMedGrower @1diesel1 @Jimster @oldskol4evr @Dirtbag @Burned Haze @OldManRiver @Jack og @az2000 I know forgot a bunch but that should get ya the answer and probably piss some ppl off at the same time all be it not intentionally.

 

[MIMedGrower]

I cant advise how to water/feed coco but i can say those plants were way over fertilized and that drives ph down ad well as burns the leaves and then blocks roots.

 

[MiHomeGrown]

I cant advise how to water/feed coco but i can say those plants were way over fertilized and that drives ph down ad well as burns the leaves and then blocks roots.

I may have mis-led with the feeding. I am using 1/4 of the strength from the grow chart provided by fox farms for hydro not the bottle. If that’s still too much I’m open to suggestions.

 

[Seraphine]

I believe your problem is your nutrient line. Is the the fox farm for soil or hydro? You need the hydro line for coco coir. The one for soil will not work in coco.

 

[Seraphine]

I may have mis-led with the feeding. I am using 1/4 of the strength from the grow chart provided by fox farms for hydro not the bottle. If that’s still too much I’m open to suggestions.

So you are using the hydro line?

 

[Aqua Man]

I cant advise how to water/feed coco but i can say those plants were way over fertilized and that drives ph down ad well as burns the leaves and then blocks roots.

Thoughts on septoria?

 

[MIMedGrower]

I may have mis-led with the feeding. I am using 1/4 of the strength from the grow chart provided by fox farms for hydro not the bottle. If that’s still too much I’m open to suggestions.

Like i said i dont grow in coco and dont know how to advise fertilizing.

 

[MIMedGrower]

Thoughts on septoria?

I dont think that is the problem.

 

[Seraphine]

Thoughts on septoria?

No. It’s nutrient lock out because his pH is too low. I’m waiting to hear back on if he is using the soil or hydro line.

 

[MiHomeGrown]

Attached are the nutes I am using. As well as the worst of the 3 plants in sunlight. (One of them has zero evidence of this issue and is 22 days into bloom).

 

[Seraphine]

No. It’s nutrient lock out because his pH is too low. I’m waiting to hear back on if he is using the soil or hydro line.

If he’s using the soil formula, he’s not getting enough calcium and the soil formula will mess up his pH. If he is using the hydro then there is something else we are missing.

 

[Seraphine]

That looks like the soil formula. You can’t use organic with coco coir. You have to treat it like hydro. Coco is considered hydro just not the water medium.

 

[Aqua Man]

No. It’s nutrient lock out because his pH is too low. I’m waiting to hear back on if he is using the soil or hydro line.

Yes absolutely... My concern was if it was possibly also leaf septoria because that needs to be corrected ASAP along with ph and nutrients. Because you can correct the rest but If it's leaf septoria fixing the other issues will not fix that.

 

[Seraphine]

Get yourself some hydroponic nutrients ASAP. It won’t fix the damage but ou can prevent additional damage.

 

[MiHomeGrown]

Get yourself some hydroponic nutrients ASAP.

First, thank you all for the help and reply’s.

Second, I certainly will do that. I can’t believe the hydro store sold this to me knowing I bought coco and perlite at the same damn time!!!

I will report back once I have some better results.

 

[Seraphine]

Or if your budget is tight, can you stick them in the ground. Then you could keep using that line.

 

[Seraphine]

You can use the general hydroponic flora trio line. I am sure they have that at the grow store. I’d pick up some cal mag too.