i really doubt molasses is the issue, of the very long list of things that could be amiss, im leaning towards ph and or salty coco, a flush wont kill anything, but would eliminate possibly both things if they are the problem, if your gonna grow in coco you really do need a ph tester even cheap strips for a fishtank or pool would tell you your ballpark range, if thats not possible i would do what i do and mix some soil into the coco, 50-75% coco will give you the rapid growth of coco, and the soil will add its ability to buffer the ph to an acceptable level, , autos are tougher than regulars they can handle much more harsh an environment they shrug at temps as low as 40, i had some survive several nights of 32-31 f nights and were none worse for it, bpn is far superior to oc in my opinion, and you know you are in control, with oc you lose that control, fine if all goes well but with coco you need that control , my gut sez you know how to use bpn, so stick to what you know for now, ,when you try some new stuff just try it on one plant and see how that goes.."all your eggs in one basket and all that..."
