So since you are in coco there are two things to keep in mind, first is that coco tends to suck up calcium; second is that coco tends to release a bunch of potassium later in the cycle. So what that typically means is that calcium should be supplied with most waterings so there is some calcium available for the plants to take up. I will say you are at a point in the plants life cycle where they are growing pretty rapidly and sometimes that is the cause of the lighter color growth at the top. But a sign of calcium deficiency is the new growth will be lighter in color possibly even yellowing out before the leaves from the bottom of the plant. But from the images your plants do look quite healthy.Just looked, and it is indeed derived from Potassium Silicate
Do you recommend feeding Silica; Cal/Mag; Tea for EACH watering while I'm in flower? Based on the slower growth, and only needing water every other day, I'm thinking that my microbiology is just not as robust as it should be. And maybe the reason the plants perk up so much after the teas is that they aren't getting enough of the nutrients from the slow release dry amendments as they should be. Thoughts??
Coco is not great at holding on to nutrients as it had a low cation exchange capacity (CEC). Each time you apply water you move old molecules out and replace them with something new, so I would recommend using some nutrients each time you water. Personally I would apply a small amount of cal/mag with each watering, silica every third watering and tea with one of the waterings that does not have silica; but this is just how I would do it. I would however aim to water every day if possible. One of the advantages of coco is that you can water regularly and each time you apply water from the top the oxygen within the medium is replaced. More oxygen at the roots will lead to better root, and ultimately plant growth. (This is why the guys who run hydro-like systems with multiple waterings per day have larger stalks.)
The tea is the best thing for feeding your microbial life, it is providing the food the micro-herd needs to survive. Though you have amended your coco with organic amendments a lot of that takes a while to break down, and only little bits are available to your plants. This is likely why they perk up when you give the tea. The dry amendments are still providing food, but not as readily as the tea. Also I would drop the molasses altogether, its not doing as much good as most people think. If you want to keep using the molasses give it no more than 1 tsp per gallon per week.
All in all you have very healthy looking plants, so not a lot of adjustment is needed in your regimen. Just a little tweaking, but that is totally normal and most people tend to tweak even after having many successful grows.