Light green leaves at the top.

Hi all, just switched to flower about a week ago and I'm starting to notice the leaves turning a very light green, dosnt look quite right.
They are autos in soil/perlite, the soil ph is 6.5 - 7.0. Under a 250w hps. Up until yesterday evening I havnt used any nutes so I thought perhaps its time to start. so last night I did give them their first small dose of fox farm.
Anybody have more of an idea what this could be and what I can do to correct them?

This is perfectly normal. Carry on.

smokinrav said:

This is perfectly normal. Carry on.

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Oh okay, perhaps I'm too being too cautious with it. Thanks for the reply (Y)

Lower leaves will almost always reveal problems before new growth. The plant will sacrifice lower leaves for successful reproduction

If they are autos you don’t need to switch to a flower light schedule. Other than that they look normal.

sometimes over watering can cause the new growth to come out a bright green/yellow I believe it's Iron def.
to correct when it happened to me i just let it dry out a bit and it rectified itself, but mine were in veg when it happened to me.
not saying this is what's happening just that its a possibility

wilksiee said:

Hi all, just switched to flower about a week ago and I'm starting to notice the leaves turning a very light green, dosnt look quite right.
They are autos in soil/perlite, the soil ph is 6.5 - 7.0. Under a 250w hps. Up until yesterday evening I havnt used any nutes so I thought perhaps its time to start. so last night I did give them their first small dose of fox farm.
Anybody have more of an idea what this could be and what I can do to correct them?

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Its normal when starting flower. Some strains do it kore than others. You can feed a lil more N... but by the looks of it you have burnt tips already... inwoukd just keep on doing what your doing

Thanks all for the advice, has put my mind at ease.
Even on autos I switch to 12/12
I find it helps force the flowering and saves on electric, never noticed a huge amount of benefit from leaving it on 24hr

In that case I would recommend photo period plants. More variety, higher THC, better yields, more control if/when things go wrong in veg.

wilksiee said:

Thanks all for the advice, has put my mind at ease.
Even on autos I switch to 12/12
I find it helps force the flowering and saves on electric, never noticed a huge amount of benefit from leaving it on 24hr

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Consider increasing it again later on

oill said:

Consider increasing it again later on

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Would 18/6 suffice?

wilksiee said:

Would 18/6 suffice?

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Yeah or 16 8

Thanks (Y)

I'd be concerned. Yellow growths with the emerging leaves curling/twisted is NOT a sign of optimal growth.

I would flush out whatever you fed them. But it's probably not necessary as long as you don't cause any further issues going forward.

The leaves look fantastic, BTW!

Eh my 2 cents your grow looks fine I'd be more worried if all the new growth was duper dark green like some of your fan leaves than you would be in trouble haha