I have a 5 gallon reef nano-tank, change the water weekly and have been using Tropic Marin Pro-Reef Meersalz/Sea Salt to mix with distilled water to make my salt water. I am having problems with the alkalinity dropping too low & have now gotten to the point where I'm having to dose to maintain a dKH of ~8. When I looked up the composition of the Tropic Marin I found it is designed to maintain a dKH of 7-8; I tested the freshly mixed change water before the exchange and the dKH was only 7.0. I feel like the change water solution is dragging the dKH down because I do a 2 gal water change & is possibly the cause for having to dose the tank. I heard about Fritz Pro Aquatics Reef Pro Mix which is designed for a dKH between 8-9. What are other people using to mix their salt water for changes in nano-tanks? Is the Fritz Pro product a better option which may eliminate dosing or is there a better product??
Thanks so much for your help!
Thanks so much for your help!