Autoflowers

Whats good everybody i got 3 white widow autos in a 48x48x80 tent and i need some advice this is my first time growing autos and they seem to be going good so far they are about 5-6 inches tall and they got alot of leaf production going on already they are 19 days old and i have been giving them a feeding of 1 tbsp of 5-1-1 and a half tsp of 0-0.5-0.7 is that to much nutrients? I started them under a 450w hps light from seedlings then switched to a 1000w led light at day 17 there growth has been a big difference since then they seem to like the led alot more but i was wondering if its the best light overall for them in a tent of that size? There has been no signs of burns on them from nutes either so can i keep doing the same feeding or can i push a little more into them also how long is it gonna take till they start entering the flower stage and what light cycle should i start putting them on are they ready for a light cycle right now? Any info would be much appreciated!

you should be good with the light... the only thing you might want to worry about is the angle of the light and how wide it spreads. That is why i go multiple LEDs... heck i'm actually rocking a 1000w led and 2 300 watts in tent that is the same size on 3 photos... Mine are cheap LEDs from amazon but they grow some dank pot. right now i'm doing photos with a scrog. I'm convinced that is the best setup for LEDs in a tent because of even canopy and light penetration isn't as good with them the wider the angle. you might want to pick up a supplemental light... use 1000w for 2 of the plants and then put one of these over the third. cheap and gets the job done for 1 auto https://www.amazon.com/Ledgle-Spect...id=1507162418&sr=8-2&keywords=global+star+led

HPS isn't good for vegging, that is a flowering bulb, you only want to use them when flowering. For hid you want Metal Halide during veg. When you start flowering add that hps back into the mix. I would imagine the growth difference you noticed is because they are getting close to flowering which is when the growth really takes off. You can keep on pushing vegging nutes until you see the flowers really developing well, usually about 3 weeks into flowering for photoperiod plants, then switch to flowering nutes. I am not sure about autos though, I am still waiting on my first auto seeds to arrive.