We have all been there. It is 2:00 AM, and you are staring into the deep blue exhilaration of your SPS Reef Tank taking into account a flashlight. You are looking for a sign of life, but instead, you look a patch of white upon your prize Acropora. Your heart sinks. I have spent thousands of dollars upon high-end lighting, flow patterns that mimic the Indonesian coast, and the most costly skimmers grant can buy. Yet, for months, I struggled considering the most basic element of reef tank chemistry. I could not save my magnesium levels stable. I was guessing. I was "eyeballing" my liquid magnesium doses based upon distracted forum posts. It was a recipe for disaster. That is until I finally leaned into a tool I had ignored for far too long. This is my honest, slightly chaotic, and ultimately flourishing bank account of My Personal Experience in the same way as The BRS Magnesium Calculator For My SPS Reef Tank.

Lets be real for a second. Most of us obsess greater than alkalinity and calcium. We treat them taking into account the king and Einstapp queen of the aquarium. We check them daily. We have high-tech dosing pumps dedicated to them. But magnesium? Magnesium is often the forgotten middle child.