Unknown nute issue.

Hey guys,

Recently started my first soiless grow (60% coco coir, 40% perlite) with some dolomite lime added on potting. The plants range from 5-13 days old. The older plants suffered what I can only imagine was some pretty gnarly nutrient burn. Can someone please help identify exactly what the specific problems here are? They seem to be coming right, but I'd rather know exactly what is going on and what to do.

Im no pro so dont take my word for it But you need to get the pH right and adding dolomite lime to your medium can buffer the pH up to 7. But you want a pH around 5.8.. Id say repot gently without DL.. I grow in soil and use the DL as buffer from about pH 6.2 to around pH 6.8.

Yeah, If you are doing a soilless grow that lime will mess your PH. You want a PH in the low 6s. Preferably around 6.2. Soiless is really a pseudo hydro.

The pics look like nutrient burn however.

Thanks, will look into doing so. What calcium/magnesium supplement do you recommendatory then?

Any liquid cal-mag product will do.

those plants are nuet burned

and those plants are too small to feed yet.