The fish pump is KEY! I aerate my tap water ( 2 days) with it to expedite the process of evaporating off the chlorine in the water. The added oxygen in the water is helpful too. As far as the molasses goes, the first time I used it my plants threw a friggin party! They loved it soo much! I did not mix it with the nutes though. I gave it to them every other feeding at 1 TBLS per gallon. And you MUST aerate this mix for a couple of days. Alot of people using molasses dont aerate the mix and that can cause some problems interfearing with N uptake.
Here we go I found it. This is from Ohsogreen-
Here is how you do it.
First use only unsulphured molasses, like Briar Rabbit or Grandma's Molasses (brands). Mix one ounce to one gallon of chlorine free water. If you only have tap water, let it set for two days & 99% of the chlorine will evaporate. Then you can add the molasses.
.
You can bubble (oxygenate) it using a cheap aquarium pump & air stone for at least one day. Or just pour it from one clean container (jug or bucket) to another a couple of times a day, for at least two days.
.
This provides extra oxygen to the good micro-beaties, they then eat, mutiply, & kill off - the not so nice micro-beaties. The longer you oygenate this mix, the more good guys you end up with. Their eating & pooping out the NPK (bioconversion) is what make it highly soluble. Over time their bioconversion reduces the N and pumps up the P & K slightly. Not a big shift, just a point or two.
.
This makes a good growth stage fertilizer (that's cheap).
.
Just mix it light the first time & water in lightly - like one quart per plant.
Start low & build slow. This prevents overfertilizing.
.
Use this mix one week & plain water the next.
.
You can add nutes to the mix, but remember your adding to a mix with a NPK of about 5-1-3 already.