Purple Urkle Clones

Really stretched the last week. For being indica, these are tall. Way taller than my last auto grow. The tent is pretty much completely full. I noticed some leaves are falling off at the lower levels...probably from lack of light through the thick canopy? I've tried a little trimming but these plants seem to be making a lot of new growth at very bottom of plant making it's a little confusing for me. Should I chop off new growth at bottom since it can't really develop anyway? No buds have appeared yet. I'm hoping it will be easier trimming when the limbs supporting buds can be identified more easily. It looks like the fungus gnat crisis is over. Not seeing anymore bugs. No chemicals were used. I put the yellow sticky cards in and turned the fan on the soil so it oscillates over both pots. The idea being that since the gnats thrive in wet topsoil, I will dry out the top most layer of soil so they wont lay breed there. I also assume that they wont be able to fly very well with the fan blowing. I also started watering on a different schedule. Instead of everyday like I was doing, I'm now watering every three days.. Same amount of water, just less often. Seems to have worked. Waiting for flowers to appear.