1st problem I see is that your spray bar is misaligned and most wont root because they need constant spray pattern
2nd the neoprene collars are haphazardly upside down...
3rd make sure the water level is 1/2" over the top of the mag pump
dont trim your leaves..EZ cloners dont need that
the temp is fine.
water is fine...weak nutes is mo better..600-700 ppm
when set up properly you will have mad roots in 7 days...sometimes sooner.
Ive seen lil white dots in 25 hrs. nubs in 48...small roots at 72..etc
we have various secret sauces on nute mixs that we all use on some level
GOT ROOT?
What solution do you use in your cloner?