Need help first time grower

[Izzy007]

I'm not sure if I'm overwatering or under watering, as you can see it has some yellowing and also leaves at the end have been curling down ,or what do you guys think might be something else ??

 

[Waira]

we need info man,... T, RH%, light type and distances, medium (coco?)... if so, what ppm and pH going in, and any Ca-Mg included? Could be lights are too close as well,....

 

[Izzy007]

Down to earth 4-4-4 70%and down to earth 4-8-4 30% also about 10 % perlite , coco medium (royal gold ) in 3 gallon fiber pots, did not add cal meg ,been watering with tap water but just started checking my ph and watering at 6.5 -6.8ph growing auto strain, these pictures are from today and as you can see still yellow and it looks like where its curling down it's almost dry and brittle. Had my ligh electrical sky 300 at 50% intensity about 14 inches away humidity is at 60% and temp fluctuates between 69f-
74f

 

[namvet25]

Water entire pot at this point

 

[Izzy007]

Copy I will give that a try will post pictures in a couple days with results

 

[Jackson]

Maybe lights are too low. During veg I keep a platinum p300 about 30” away from tops

 

[Izzy007]

Ok yeah I'm going to raise up my light also then

 

[Waira]

pH is too high for coco, and what's really needed is the ppm going in, and coming out,.. If you're trying to run coco like true soil, you will very likely struggle with thing. Coco is not a soil, it's a specialized soilless medium, different from other peat based soilless as well,... it's really meant to be used as a hydro medium, it can take and perform well with the constant watering because it drains and breaths like nothing else.. this si why in general, you feed at milder ppm, often, with 15-20+% run off each time, to purge excess nute salts, keep a more balanced amount in there, and allows to monitor the run-off pH and ppm.. Coco also needs extra Ca-Mg because of it's odd CEC properties... If you haven't looked yet, go to the Reference Section and read up on it in the Sticky article section...
Off pH and uncertain nute availability is behind their symptoms, that needs to be addressed as mentioned, or they will stunt out and be weak performers...