What is this? Yellow polka dots

[Eirohir]

Hi guys and girls.

First time poster. Long time lover.

So I decided to bite the bullet and try grow my own little stash. Things are going well enough. But recently I've noticed some speckling on the leaves and my first thought was a deficiency of some sort but now I'm actually pretty concerned. I'm into week 3 of flower and I don't want to have wasted 10 weeks. Any help will be greatly appreciated.

FAq.
Medium: Biobizz light mix
Nutes : Biobizz Grow/Top Max/ Bloom
Feed Rate: 2.5ml (weekly) per 750ml Bottled Spring Water. Run off 20% ish
PH: 5.5
Lighting: 35w led R/B/UV 165 125 6 respectively. + 1000w eq. CFL Full Spectrum bulb.

Any comments welcome.

Thanks for reading and have a great day.

 

[Mark Gordan Smith]

C'mon dudes....
These girls need help and I'm too noob to be able to give it!

Watching...........


Edit: Maybe this helps: Am I over thinking my issue?

 

[Mark Gordan Smith]

Trying to get you some attention.
Bump.

 

[Eirohir]

I'm sure someone will be along shortly. LoL. Thanks for the bump tho

 

[Pennywise]

Looks like your soil or nutrients are way to hot.

 

[Eirohir]

Really? Wow I thought I was going easy.

So just flush and light feed or..?

 

[Mark Gordan Smith]

Surely that PH figure you give in your initial post should be 6.5 give or take spit.?

 

[Eirohir]

Ah well....

The last two feeds were 6.8 and I was just pushing the ph back to 6.0. The runn off measured 6.1 so I was happy enough with the result. Was that wrong?

 

[Emilya Green]

I see magnesium deficiency starting up, but am more concerned by the yellow splotches... I am thinking that this has to be pH related and showing a major mobile deficiency starting up. In a soil based grow, your pH should be set to the 6.3-6.8 range, and I recommend 6.3

 

[Eirohir]

Ohh ok I was seriously over doing the ph. I will definitely flush and light feed first thing.

Thanks for popping in

 

[Eirohir]

Just btw...

I don't have access to cal-mag or other hydro tools. What can I use to supplement magnesium? and how much is enough?

 

[Killian]

Ah well....

The last two feeds were 6.8 and I was just pushing the ph back to 6.0. The runn off measured 6.1 so I was happy enough with the result. Was that wrong?

The runoff won't tell you anything. Be concerned what s going in not coming out. I tried the same thing adjusting my ph based on runoff and can tell you from personal experience that will cause a lot of deficiencies from ph fluctuations. Just my two cents.

 

[Emilya Green]

Just btw...

I don't have access to cal-mag or other hydro tools. What can I use to supplement magnesium? and how much is enough?

You can make your own calmag out of eggshells... but trust me, you need it. Click on my tutorials for details.
You can also spray epsom salt solution on the leaves, but that is just a temporary fix. Some will advise you to put epsom salt in the soil, but I am dead set against that idea... the high salt content will cause problems with the roots. Calmag is a very common supplement in the gardening world and should be available just about everywhere. Are you sure you don't have access to some?

 

[Eirohir]

My Spring water looks like the picture. My first thought was surely that's enough micro-nutrients for starters. Am I wrong?

 

[Eirohir]

You can make your own calmag out of eggshells... but trust me, you need it. Click on my tutorials for details.
You can also spray epsom salt solution on the leaves, but that is just a temporary fix. Some will advise you to put epsom salt in the soil, but I am dead set against that idea... the high salt content will cause problems with the roots. Calmag is a very common supplement in the gardening world and should be available just about everywhere. Are you sure you don't have access to some?

Actually yes I do. Weird... never came up in a search before.

Thank you Emilya

 

[Emilya Green]

My Spring water looks like the picture. My first thought was surely that's enough micro-nutrients for starters. Am I wrong?

not even close

 

[Eirohir]

May I say in less than 2 hrs my problem has been solved and a solution given.

You guys are the best.
Thanks and I'll post once a week to keep people updated if they want to see.

 

[Eirohir]

Just an update.

I flushed the soil and gave a light feed. 1.5mg top max 1.5 mg bloom in brown sugar water 750ml. ( I read somewhere sugar helps the soil develop and maintain good bacteria, so far they seem to like it ) ph'd to 6.2.

No change yet but I took some snaps in natural light to let you guys have a proper look.

Thanks again. Saved my girls.

 

[Eirohir]

Grr... those are ml's not mg'g. Typo.

 

[MochaBud]

Just an update.

I flushed the soil and gave a light feed. 1.5mg top max 1.5 mg bloom in brown sugar water 750ml. ( I read somewhere sugar helps the soil develop and maintain good bacteria, so far they seem to like it ) ph'd to 6.2.

No change yet but I took some snaps in natural light to let you guys have a proper look.

Thanks again. Saved my girls.

I use Grammas unsulfered molasses, 1 tsp per gal, microbes love it... and