rgmatzke
Aquarium Advice Apprentice
I am having a problem with High ALK. I started my tank up 8 weeks ago and have never been able to get it down. I use RO and Red SEA Salt. I just did a water change this morning and I tested the water before adding to the tank. Come to find out the ALK is High before I even add it to the tank. Does anyone know why it is high and how to fix the problem?