White widdow exstr auto flower(could really do with some advice)

Hi have 2×600 watt hps at 24 inches above the plants....the ph is at 6.5 to 7....i water every. 2 to 3 days i use nutes every other water....

But the bottom leafs are turning yellows the really big fan leafs....


My babys are about 2 weeks i. To flowering can any one give me an idea on how to fix this.....thes are the photos onley the 2 big ones have the problem......

What medium? They could just be not getting enough light of you say it's the bottoms leaves only?

Its just the bottom leafs and its reAlly light green...

Is it soil?

What size pots?

How long have they been in those same pots?

If it's saying feed me that much I would increase the amount of times I watered. Don't go extra strength on your normal feed days, unless you want to increase very slowly.

In soil, you will see results so slow, so I say feed every watering...especially as those are some big autos and have probably been in there at least a month before start of flower?

It's an auto though, so what's the flowering period supposed to be from the breeder? Cannabilizing leaves is what I prefer the plant to do before the end, but slow and gradually

The pot is 15 liter pots and they have been in the same pots from the biggining they said 65 to 70 days from start to finish...so the flowering period how long should it be....So you think i should give it some more food then...