Decided to show the progress here, now that it gets interesting :) The 2 Tropical Tangies are very different, I like the one in the middle much more and took some clones for later before flowers were formed. The left TT is very compact and leafy and does not like the feeding solution so much. But overall I am pleased with how things go.
Additional note: I use the bluetooth dimmer for the lamp, they get a 1hour sunrise from 0 to 100% power, 8 hours of full power and then a steady sunset back to zero for the last 3 hours. Not so much to save electricity, but to keep the temperature in check.