Orange/brownish Spotting

[SpaceGod]

Pretty much spotting on all plants, really started coming through on flowering, not every leaf only some.
12 Autos under 6 300w Mars Hydro
OF Soil
Feed is 1 1/2 gal for all 12 every 2 days
Smart Pots
1tsp Bud Candy Every Watering
2tsp Fox Farm Tiger every other watering
3tsp fox farm liquid every week
Temp = 73-77 during day 68 @ night.
18 hours light on 6 hours light off
I did use fox farm Grow Big during veg about 2 tsp every few waterings
1 Tsp Cal Mag every 3 waterings
Plants are anywhere from 12-18 inches away from light.
Constant fresh air being replenished with excellent ventilation.
WHAT IS GOING ON?!?

 

[SpaceGod]

Anyone have any clue @ all??

 

[G.Leave]

Hey bud...i am sure @Waira or @namvet25 can help you out. Good luck

 

[Heavily Medicated]

The spotting you are seeing is Ca def. I looks like you may need to add P too. Get a good P/K booster and up your CaMg. When plants move into flowering, their needs for Ca and P both increase alot at that time. Especially with LED, and double if also using RO/DI water, the need for Ca/Mg is huge. I grow under LED and use RO and I have had to add up to 3 ml/L CaMg to make her happy. I go with 2 ml/L every time once I get into flowering. The big white spots on the last pic looks like you dripped some nutes or something on the leaf. Your buds are smaller yet, you could go with a foliar application of CaMg to get things headed off, then up your feeds to manage from there.

 

[namvet25]

Sounds good to me HM.