PH Problems I Think?

I Think I Have A PH problem but have no PH Test Kit To Check The PH, So by chance can someone Identify my problem if its even PH related.

Indoor 150watt HPS
Soil Pro Mix #4
About 1 Week In Veg

even if it is, you can't fix it without a ph test kit
and it might be, yeah

Looks like a nute problem coupled with ph, most likely nitrogen. Flush, re-ph and use 3/4 to full strength veg base nutes. Use micronutrients to make sure its nothing like molybendium or iron deficient.

They look hungry for sure.

That's only a week old?

it looks very light green
maybe its because of the camera
might need nitrogen

Yes only a week old its was a cutting not from seed. Flushing, then ill see whats next.

So if yo not checking ph then yo most likely not testing for ppms either right?
Yo need to reconsider this method of growing and get some meters~
Or have yo even fed any nutes yet? Is there any nutes in pro mix 4
I've use sunshine mix 4 it didn't have nutes and yo have to give'em
some and the right amount at the right ph~