Best water? My tap is 200ppm of calcium?

[GanjaBaby444]

Hello everyone, I've got yellowing and slow growth? I've been following all the guidelines but still experiencing yellowing leaves and twisty new growth. Girls are 6 weeks old and going into third week of flowering. My first time using bag seeds..??? Thinking maybe too much salt buildup or just crap seeds?

Thanks

 

[PeytonManning]

Need to know more. What medium you growing in, what's your pH? What nutes and lights?