Do these leaves/plant look healthy?

[newbiegrower4]

its the same plant,a northern lights strain been vegging for about 2 1/2 weeks at 500 ppm and a ph of 5.7-6.1 the leaves are kinda sticking straight up and a little twisted. the old growth tips have a little bit of yellow just at the tip.

 

[CocoJoe]

500 ppm is probably starving your plants.

cocoJoe

 

[newbiegrower4]

Thanks man I changed my nutes and ppm'd it to 850 and just gonna watch for any yellowing or anything.