Those plants look great !
Molasses can over-fertilize with iron and other micros as it is a boiled-down concentrate, I would not rely on it for calcium.
Use maximum 0.25 grams Epsom salts per liter of water if used alone. (More can cause lock-out and precipitates)
A perfect Cal-Mag nutrient solution to use in every fertigation is made by mixing:
0.2 grams epsom salts (MgSO4) per liter of water
0.3 grams Calcium Nitrate per liter of water
These will not react to make gypsum (CaSO4), Mg and Ca stay dissolved.
Dry fertilizer powders with guaranteed minimum analyses on all ingredients are what commercial greenhouse growers use; I recommend these over liquid concentrates. Professional grade, dry fertilizers will cost 5% of what people pay for liquid concentrates, and they work better.
A complete nutrient solution is made from using the above Cal-Mag rates with 1.0 gram per liter of one of these base fertilizers:
Plant Prod 20-20-20 for veg.
Plant Prod 15-30-15 for bloom
Plant Prod 8-20-30 for finishing until leaching soil.
After pH buffering the complete nutrient solution will be 1200 - 1350 ppm, pH 6.8. You can mix CaNO3, MgSO4 and all in one reservoir too.