the sex leaves you are talking about are not real, if you mean the pistils/hair or nuts/pollen sacks, then i understand, but the "leaves" will actually grow into branches and off shoots if kept in veg, there is no such thing as sex leaves.
as to the whole nutrients question, most people (from...
the visible light spectrum is about 450-750 and is measured in nm, dont ask me i dont know what nm stands for. plants use about 420-770nm. there is a big chunk in the middle which while isnt the best for growing can be used, this is about 500-600nm or the green spectrum, 400s are blues and...
pretty simple really, im wondering what are the hottest water res temps for viable growth, whats the coldest temp, and what is the optimal water temperature for growing.
it will be a full deep water, roots fully submerged approx 1 inch from seed, will be using Advanced nutrients, a tea of cyclo...
i am not 100% sure about this but it could be the leaf turning towards the lights, is the plant in question slightly off to the side with a stem too thick to bend?
Personally i dont see any red/orange pistils, they look like they still have 3 weeks minimum.
the flower cycle is usually approximate and taken after pre-flower (when the tops of your plants first get hair, not the 2 hairs at nodes)
and keep in mind when using soil add 1-2 weeks on for...
if you have 300 go for a more powerful led. 200-300 watts min. youll pay about .50 cents a watt on ebay/alibaba. look into COB or chip on board technology, should help you with selecting a better light for the price. about 100 watts a plant (led) is good.