How much molasses should I add/liter of water?

Hi! My plants are at day 38 Im growing in coco ph is around 5.8! Thx

I personally wouldn't use molasses in coco coir because I do hydroponics to avoid insects and organics. Some people do organics with coco but I think the molasses will attract bugs

It also say that it has cal and mag and I have a mag def and my calmag is late so should I do it just for mag def?