First time grower - Need a bit of help please

danglyroot

New Member
Hey guys, first time grower here. I'm having an issue that I could use some advice about.

What Strain is it? Nirvana NL feminized
How Many Plants? 3
Is it in Vegetative or Flowering Stage? Veg
If in Vegetative Stage... How Long? 3rd week
Indoor or Outdoor? Indoor
Soil or Hydro? Hydro
If Hydro, Reservoir size? 15 gal.
If Hydro, Reservoir Temperature? 70-74
If Hydro, what type of Medium? Clay pebbles
If Hydro, what type of Setup? DWC w/ topfeed
Size (Wattage) of Light? How Many? 2 300w LED's (Veg switch only atm) Pled
Temperature of Room/Cabinet? 70-81
RH of Room/Cabinet? 30-45%
PH of Medium or Reservoir? 5.7 - 6.0
Any Pests? no
How Often are you Watering? topfeed for 15 minutes 3 times a day
Type and Strength of Fertilizers used? General Hydroponics 3 part, Calimagic at 3/4 strength, Hydroguard, and Rapidstart at full strength
Size or Square Footage of Room? 3x3x7'11"

Some of my bottom leaves are developing brown spots, and I'm wondering if it has something to do with res temps being too high or it its some sort of deficiency. I scrapped my first attempt due to root rot, so I ordered the hydroguard hoping that I could prevent the rot during my second attempt since I read that it helps with higher temp reservoirs. The new growth on all three plants looks nice and green, but two of the three plants have developed these spots on their lower leaves. I dropped the lights to the manufacturer recommended distance of 24" but raised them to approx 30" because I wasn't sure if the lights were causing the issue. Any help is greatly appreciated.

 
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