Molasses

Viscosity of syrup like concentrates can be hard to dilute, if any globs or lumps form it can create pockets of bacteria that will eventually stagnate causing problems. Best and safest bet speaking from experience is powdered molasses, as this removes alot of the potential for problems. Oxygen is your first major bottleneck when adding carbon to feed the Micros. 40% of all the carbon a plant captured is exuded through the roots into the rhizosphere to feed the conversion of that carbon. Nitrogen is a requirement for the roots to convert the carbon.into usable energy or atp. No nitrogen no ATP. Root respiration is separate but similar part of cellular respiration which happens in the mitochondria of the leaves (mostly), Microorganisms compete with the plant for oxygen in the rootzones. A large percentage of the time people who add sugars are unaware and very rapidly hypoxia or anoxia (oxygen deprivation) become present rather than provide any benefit to the plant. Root respiration of soil is directly linked to rh of air. The carbon to nitrogen ratio in a medium is used to signal autophagy. (Dumping of nitrogen to fuel the carbon conversion). For smoothest smoke come harvest you want to dump all the nitrates and keep a little ammoniacal nitrogen. Once the micros convert the carbon sugars into energy, they release CO2 which is "used carbon". This CO2 becomes trapped over time in the medium and the more co2 you have in a medium the better it retains moisture. So as flower progresses less and less evaporation occurs due to canopy etc, more and more moisture retention. This slowly builds towards hypoxia. Soon as oxygen goes in a grow its all over, nothing works and everything breaks down. In order to keep the medium honest you need to have a solid negative pressure within your tent indoors, this replicates high and low pressure fronts that mothernature uses to barometrically pump fresh oxygen in to a medium and co2 and nitrogen out of a medium and oxidized into thin air. Failure to do so when adding sugars will quickly destroy a mediums oxygen content. WHY? Oxygen moves 32000 times slower in a medium than air. It moves 320,000 times slower in a medium saturated above a point. Soon as medium becomes oversaturated, aerobic fermentation stops, entire plant runs off 10% ,ph skews, acids relesee, game over. To which you will be advised to add more calmag by some guru on GD. Adding organic carbon in the form of sugars is highly beneficial, but its not as simple as throwing it in a medium and hoping for the best. It required the underlying fundamental knowledge that goes with it in order to successfully utilize it without causing major issues. Very best of luck whether you decide to or not, probably not recommended, but with a little know how and a little messing around I successfully have my tent running 1200-1600ppm come morning, as opposed to the standard 6-800pmm I'd normally get from the compensation point alone. A solid negative pressure setup can increase yields by upto 20% A solid co2 setup can increase yields another 20% Its alot of work and study to make it work. For a few extra % . But once you have mastered the 8 cardinal rules of plant growth, and optimized them to their full potential, then it becomes a game of squeezing out that other 20% from high levels of co2, consistently and for free.... well almost free. Not for everyone I'll freely admit. If not for you then stay in your lane grow however you want to grow, best of luck.