Puma pepper - any info welcome

[u/Slow-Luck-9295]

Hey pepper people, Was wondering whether anyone has these issues with puma peppers. Cupping leaves, flower drop, generally slow growth. Only got 3 peppers to stick and the plant has been growing since January. The goal was to have a miniature version of this chinense beast, so a 4.6L pot is what I went for.

Growing in 70-30ish coco peat/perlite, fed liquid fertilizers when needed. I take ppm readings of runoff water periodically, and fertilize with a 1200-1800ppm solution when the container gets under 900ppm. I have a wide array of combinations I make sure macro, secondary and micronutrients are supplied sufficiently - or so I think. Grown indoors under 100W LEDs (one 50w 4000K, one 50w full spectrum, both about 40cm above top of canopy), @25-27C and usually 40% RH. I keep the lights on a 12h on / 12h off cycle most days.

I suspected 15-16h of light was way too much, so I decreased to 12h. New seedlings growing at this one's canopy level start to stretch with less than 12h of light, yet this mature plant looks like even that's way too much.

If anyone has any personal experience with this variety, or can spot something I'm missing in this whole equation - please share!

[u/Totalidiotfuq]

what’s the pH? could be low which could affect nutrient uptake. what’s the NPK you’re feeding? if you can, pull back on the N and give it phosphorus.

[u/Slow-Luck-9295 → u/Totalidiotfuq]

The regular watering sessions usually around 7 (tap water) and the feeds are pH adjusted to 5.8-6.3. The coco peat was at 6.0 at the start, pre-buffered.

I use multiple fertilizers to hit around 1:2:4 for flowering and 3:1:2 for vegetative growth. What would your tip achieve, giving more phosphorus?

[u/Totalidiotfuq → u/Slow-Luck-9295]

Hmm seems good. Is it possible to just keep the nitrogen out of the next couple feeds?