Review on Seachem Equilibrium 300g: Optimal Balance for Aquarium Water by Kelly Jones

I have incredibly soft water. for example 0 GH and 0 KH from the tap. It does what it's supposed to, but I've learned to easily dose the aquarium (based on estimated actual total water volume) and make very small adjustments when needed. When I first used it in my new large tank I must have underestimated the volume of the substrate and hardscape because oh my god I went over 10° GH on the next test (I shot 3-5 based on the label instructions).