Little Black Dots On Leaves

[hollanda88]

I have noticed ont he broad leaved plants im starting to get tiny black dots on the leaves. Whats causing this? And how can i stop/reverse it???

I have 1.5W per L of t8 tubes and im doing liquid ferts (Ferropol). lights are now on for 12 hours a day

andrew

 

[JenCliBee]

Just looked quickly and this came up for you but i may be comepletly wrong lol


"Lack of Magnesium

Leaves become yellow but have green veins; they may also develop brown spots. If your plants are short of magnesium, they will be unable to absorb iron - add trace elements"

 

[hollanda88]

Just looked quickly and this came up for you but i may be comepletly wrong lol


"Lack of Magnesium

Leaves become yellow but have green veins; they may also develop brown spots. If your plants are short of magnesium, they will be unable to absorb iron - add trace elements"

Cheers, so dosing more ferts??

 

[JenCliBee]

Just looked quickly and this came up for you but i may be comepletly wrong lol


"Lack of Magnesium

Leaves become yellow but have green veins; they may also develop brown spots. If your plants are short of magnesium, they will be unable to absorb iron - add trace elements"

Cheers, so dosing more ferts??

TBH m8 i'll leave that to the real experts im still very much a novice when pl;ants are involved lol, but i would imagine yes more ferts or even a different fert... maybe somethink like TPN or TPN+ with maybe easy carbo or the AE alternative for a carbon source?

 

[hollanda88]

Just looked quickly and this came up for you but i may be comepletly wrong lol


"Lack of Magnesium

Leaves become yellow but have green veins; they may also develop brown spots. If your plants are short of magnesium, they will be unable to absorb iron - add trace elements"

Cheers, so dosing more ferts??

TBH m8 i'll leave that to the real experts im still very much a novice when pl;ants are involved lol, but i would imagine yes more ferts or even a different fert... maybe somethink like TPN or TPN+ with maybe easy carbo or the AE alternative for a carbon source?

I would love to get hold of TPN+ but i want to read the packaging in an LFS and nowhere has it

 

[JenCliBee]

Just looked quickly and this came up for you but i may be comepletly wrong lol


"Lack of Magnesium

Leaves become yellow but have green veins; they may also develop brown spots. If your plants are short of magnesium, they will be unable to absorb iron - add trace elements"

Cheers, so dosing more ferts??

TBH m8 i'll leave that to the real experts im still very much a novice when pl;ants are involved lol, but i would imagine yes more ferts or even a different fert... maybe somethink like TPN or TPN+ with maybe easy carbo or the AE alternative for a carbon source?

I would love to get hold of TPN+ but i want to read the packaging in an LFS and nowhere has it

Packaging m8 doesnt really say alot but if you say here what you want to know about it im sure someone will be able to hlep you futher , then you can order yourself some off either AE or the green machine.

 

[aaronnorth]

what do you want to know about TPN+? I will probably know lol, i have used it plenty of times.

cut the lighting to 8-10hrs. ferropol doesnt contain N or P which isnt helping.
what size tank is it and waht wattage are the tubes?

 

[JenCliBee]

what do you want to know about TPN+? I will probably know lol, i have used it plenty of times.

cut the lighting to 8-10hrs. ferropol doesnt contain N or P which isnt helping.
what size tank is it and waht wattage are the tubes?

Ahhaaaa i new a plant geek would be along soon (no offence aaron lol)

 

[aaronnorth]

what do you want to know about TPN+? I will probably know lol, i have used it plenty of times.

cut the lighting to 8-10hrs. ferropol doesnt contain N or P which isnt helping.
what size tank is it and waht wattage are the tubes?

Ahhaaaa i new a plant geek would be along soon (no offence aaron lol)

none taken

 

[hollanda88]

And just the plant geek i expected .

2 15W T8 tubes on a 90L tank.

 

[aaronnorth]

i would buy a better fertiliser, such as tropica plant nutrition+ or seachem flourish.
You could also try some liquid carbon.

 

[hollanda88]

i would buy a better fertiliser, such as tropica plant nutrition+ or seachem flourish.
You could also try some liquid carbon.

Is TPN+ all its cracked up to be?

and would i have to dose carbon like easy carbo?

What do you htink the problem is i have?

andrew

 

[aaronnorth]

i would buy a better fertiliser, such as tropica plant nutrition+ or seachem flourish.
You could also try some liquid carbon.

Is TPN+ all its cracked up to be?

and would i have to dose carbon like easy carbo?

What do you htink the problem is i have?

andrew

yes, TPN+ contains everything you need
AE have brought out there own brand of carbon, look further down the page for the thread.

You have a nutrient defficiency, most likley CO2, but raising the levels with the liquid carbon means other nutrients, particularly &P will be in higher demand