I just started to using Coral Essential Black Label. It is very expensive additive!
I am just wondering if you have some experience for Coral Essential Black Label.
The biggest issue with this type of additive is being consistent in using it.
As it is a manual dosing system using a dropper. You will have to dose the right amount on a regular schedule. I found more success with additives that I could dose using automated dosing pumps. As ones daily schedule can change and you can miss dosing some days. This will make the additives less helpful