Plants in coco (Pics)

Hey everyone, these are my two plants I have in canna coco with about 40 percent perlite. watering is every day to every second. I feed them on every second watering with a low dose of nutes. They are about 3 weeks into veg and these last few days I noticed that there are some light green patches on the bigger fan leaves and some leaves are curling as you can see in the pics. Any input is appreciated
Thanks

The fan on them is also quite powerful so I'm guessing this is why my leaves are curling. You can sorta see the fan in the first pic. Been trying to block some parts of the fan off so its not as strong. What do you guys think
The strain is Aurora Indica from Nirvana

You should check the ph and ec of the runoff if you suspect problems.

Alright I checked the runoff ph and its fine, 5.5. However i dont have the tools to measure EC. You reckon the fan is the problem?
Thanks

anyone wanna leave some feedback or is it because I'm still a stranger on this forum.

ozgrower90 said:

Alright I checked the runoff ph and its fine, 5.5. However i dont have the tools to measure EC. You reckon the fan is the problem?
Thanks

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no i do not think its the fan. EC is important, I would invest in a meter.