Super Bushy Super Lemon Haze. Indica Dominant Phenotype? Potassium Excess? or DWC?

[EltaninRastaban]

Was surprised my SLH plant hasn't been stretching and is very short and bushy with short internodal spacing. I've been trimming the excess growth on the inner part of the plant to avoid humidity build up under the canopy and have topped the plant a couple times to allow the side branches to catch up to the top and fill in the whole 2x4 tent under a SCROG net. I'm happy the plant is staying short but it seems most plants I've seen online seem to have greater internodal spacing and stretching. Maybe the one seed I popped was a more Indica dominant phenotype of SLH or maybe something I'm doing is causing this like Potassium excess? I've read that DWC can cause plants to grow super bushy so maybe that's the cause?

Strain: Super Lemon Haze by Green House Seed Company

Temperature: Day 75-79 Night: 65-67

Humidity:50%-65%

Average PAR: 300-600
MIGRO 240W LED w/RED
light is currently about 2.5 feet above the plant

CO2:400-700

Deep Water Culture
Using Small Air Pump changing reservoir once every week or two.

Reservoir Temperature: 68-70

Nutrient: Jacks 3-2-1
Nutrient Strength: 730PPM or 1.4EC
Nitrogen: 142
Phosphorus: 49
Potassium: 205
Calcium: 114
Magnesium: 90
Sulfur: 122
Boron: .47
Copper: .14
Iron: 2.85
Manganese: .47
Molybdenum: .18
Zinc: .14
Total PPM: 730

Attached Photos show progress from one month ago. Before and After Topping/Trimming Photos.

 

[EltaninRastaban]

Hoping for bottom branches to catch up to the net not sure they'll be able to make it?

 

[EltaninRastaban]

Did a full defoliation flipping into day 1 of flower. After removing all the leaves the humidity in the tent has dropped to below 40%. Once the leaves return and I need to vent excess humidity I'll be keeping it below 60%. Lowered the light to about a foot above the plant. Uping co2 to 900-1100PPM. I plan to do a second full defoliation on day 21 of flower. Hoping the plant stretches enough to take up the whole 2x4 tent. Super Lemon Haze is supposed to be a 10 week strain so planning on harvest around day 70 but we'll see.
Any pointers are appreciated

 

[EltaninRastaban]

PAR at 12" should be between 500-700
6" should be around 600-950

Was really expecting the plant to stretch more. Was hoping for a more even canopy but the sides just couldn't catch up before i decided to switch to flowering. Maybe I did a poor job trimming side shoots when the plant was young? Planning on continuing to train under the net until the whole tent is taken up if possible.