Used my tds meter for the first time have skittles autoflowers in week 3 of flower noticed slow growth ran ran off an ppm was 1890 is that to high! Growing in 4 gallon pots an fox farm potting soil with perlite mixed in!
Do you a picture? Is there something wrong, yeah you said you are experiencing slow growth, but its hard to know what could be causing that without seeing the plant!
