Potential calcium Deficiency?

[IndoorTropics]

Day 30. Sour stomper.
soil = 25% perlite, 50% peat, 25% vermicompost.
550w SP and TS series mars hydro.
RO water everyday, keeping soil moist.
top dress 20g dolomite lime at day 23
feeding with Biotabs as recommended except at day 23 i gave 10ml orgatrex, 1g bactrex and 1 tsp epsom salts to help with deficiencies. Wonder if they showing me that hungry for more again?

started seeing these brown spots which came after slight burning on the leave tips.

 

[Proph]

Looks like the start of nute burn.. You may want to consider using water on the next couple of waterings.

 

[IndoorTropics]

Looks like the start of nute burn.. You may want to consider using water on the next couple of waterings.

makes perfect sense and exactly what i was hoping. i am going only water anyway. all good. cheers

 

[Nacho34]

Start of calmag def.

 

[IndoorTropics]

Here are some updated pictures from a few days later. Stretching has been going on and plant is entering flowering. The light may have been too close to the top (hard to balance with other plants in tent) but i think she is more happy after i increased light height last night. I have been feeding plain water only since I first posted and allowing some runoff to clean the soil out a bit. At one point the runoff was 4000-6000ppm, this is now under control again by allowing a tiny bit of runoff sometimes (not much). Still getting some yellow tips on the leaves and even a bit or canoeing which maybe is from the light instead of the nutes. Not exactly sure, but i think it was the nute burn causing this for the reasons mentioned and symptoms. Feels like some lighter green or yellow discolouration still in the newer leaves but not much and maybe they are just growing. Hmmm..

Temps - 25-28c
RH - 40-55%

Any thoughts of where I stand now? I continue to just add water but wonder when i should start feeding Bio PK for flowering?

@Waira @Proph

 

[Waira]

smacks of a micronute defc., looks like Zn to me, but something else in play with that interveinal chlorosis,... a common issue with Biotabs that I've seen,... plant next to her is showing the same, maybe S too with that yellowing pattern w/o necrosis,... I'd dose up on epsoms (1tsp/L) and look into picking up a micronute supp', like Earth Juice Microblast... this has plenty of S in it too,....

 

[IndoorTropics]

smacks of a micronute defc., looks like Zn to me, but something else in play with that interveinal chlorosis,... a common issue with Biotabs that I've seen,... plant next to her is showing the same, maybe S too with that yellowing pattern w/o necrosis,... I'd dose up on epsoms (1tsp/L) and look into picking up a micronute supp', like Earth Juice Microblast... this has plenty of S in it too,....

Thanks i searched but cannot find the product you mentioned in the UK version of amazon. Does anyone know an equivalent or where to buy this in the UK?

For now i will dose epsom salts as you suggestd and add some Oragtrex with does contain all the trace minerals, but unfortunately contains everything else as well. IThe micronutes are about due. so this makes sense. i was just scared to do it cos of the recent burning.

Seems to me you with biotabs after about 20 days you need to give 10ml Orgatrex every 10 days (give or take) to not experience micronutes issues.

 

[Waira]

Gaaahhhh! That's right, it's N/A over there,... you'll have to do some net searching for a similar product, I don't know any....

 

[IndoorTropics]

Gaaahhhh! That's right, it's N/A over there,... you'll have to do some net searching for a similar product, I don't know any....

No sweat. I have a very good idea of what I am looking for now. I am going to see if I can get this product shipped from the USA to internationally.

Will ping the Biotabs team for some guidance as well. Cheers Waira. Wishing you a fantastic week ahead! :smoking:

 

[Marshydro]

Wish you have a great harvest from Mars. Here is the grow tips for your reference when growing under Mars led grow lights

Recommended Hanging Distance Above Plants

Seedling: 30'' Germination: 24''-30'' Veg: 18''-24'' Flower: 12''-18''

Recommended Lighting Time

Veg: 18/6(on/off) or 20/4(on/off) Flower: 12/12(on/off)