1st grow in coco

It looks fine. I dont see a problem honestly, lower leaves often dont point up like the top ones. Color looks good.

A few pics from this morning and a pic from a few days ago trying to see the growth difference over a few days

Bought a TDS meter used it for the first time yesterday and this morning to measure run off ppm and ec before I did this I noticed this in the picture below, can anyone give me an idea of what it might be? My run off measured 6.6ph and 568ppm 1208us/cm. am I right to believe that 1208 is 1.2ec? Read somewhere about different scales for these meters I will put a picure of the one I bought if someone can let me know which scale it is? It’s says conversion factor NaCl if that means anything

UPDATE after spending all morning sorting my stuff out finally got it all together to share with the community if I’ve missed anything please let me know cheers here goes::
SEED OR CLONE -seed white widow x big bud
AGE - 5 weeks on Thursday 11th June
HEIGHT - 9.5inches
I’m using 100% canna coco professional plus in a 11 litre plant pot
NUTRIENTS - canna a+b 1.5ml,Rhizotonic 1.5ml,calmag 0.5ml, just started 0.5ml Cannazym I have got wiltguard as well but not used that yet.I’m using 2 litres at a time of water
I’m using tap water which has a ph of 7.8, ppm of 300/0.6ec think this is right my meter I bought reads in micro Siemens/cm and ppm So I’ve had to do some working out,I think this is right someone correct me if not the reading on the meter said 600us/cm or 279ppm,which reading is best to use
PH NUTRIENT SOLUTION- 6.2 last feed was 5.8 tho
PPM/EC NUTRIENT SOLUTION- 1287us/cm ppm read 592 which reading am I best to take?(im in the uk if this makes a difference)
LIGHT - Phlizon 6oo with veg and bloom switch
LIGHT DISTANCE FROM PLANT-5inches from top
SIZE OF GROW TENT- 2ft x 2ft
TEMP+HUMIDITY- 24-26 degrees c 50-52% humidity

Struggling a bit with this TDS meter and knowing which readings to use and if there any good( can’t afford an expensive ec pen at the min so had to make do with one off amazon )if anyone can help me out with this please?
She’s been growing very well up until now.starting to show signs of something Not right tho pictures in thread above will add some more pics from today at the end.
I fed her yesterday morning with 2litres of nutrients solution with a ph of 5.8 1287us/cm or 592ppm on the TDS meter.The run off was 6.6ph 1208us/cm or 568ppm this was its first real flush since planting been feeding before with no TDS meter just making sure nutrient water was at 6.2 or a little bit lower. This is what it looks like today not fed yet today as was hoping I might get some reply’s on here to help with a few questions that I’ve asked g
I am a first time grower as well I do have a few posts on here but it’s took me a while to get all the info together to give to you people so that you can try and help thanks for reading look forward to your reply’s