My Yellow Plant

I've been having problems with this damn thing ever since the seedling stage. It's an auto White Widow(my first Auto ever grown; second grow overall).

It's about 70ish days old so it's almost done but Id like to figure out what the problem is so I can learn from it. Im growing a Krippleberry Auto(about 20 days old) and it is as healthy as can be, growing fast. So Idk.

Here's pics of my stunted AWW:

On a good note, it's still bomb ass weed lol. I dried a lil bud and smoked it - I must say I'm in awe that it's so strong...

Anyways, it's been that yellowish color basically its whole life. I've checked the ph of my water and the soil and they are both good.. I know I don't overwater or underwater it. I have only fed nutes about 3 times so far because it seemed to burn even at 1/4 strength.. does the plant look like it was nutrient burned or maybe something else?

I use molasses and just started using fish fert.

I just figured I'd post this up and see if anyone could possibly help me figure out what I'm doing wrong.

Thanks in advance

What soil did you start with ?

To me it looks like it could use N, P, and K. Phosphorous particularly with all those tiny leaves.. nitrogen to get some green vigor going again, and it looks the browned margins/tips that comes with a K deficiency. But like in all of these situations, these nutrients could be getting getting locked out, but if you're feeding just molasses and now fish fertilizer, I am guessing these are nutrient deficient. That molasses might not have been helping. I'd flush a bunch of water through the medium, then follow it with a well rounded nutrient solution. (Fish fertiliZer won't give you everything you want, so get yourself some Botanicare pro grow and pro bloom or another brand's equivalent)