Have had my nano tank up for over a year and had it fully stocked and exactly how I wanted it. Have been watching it grow out for a long time. I went out of town and before I did I bought some more ato water. The local fish store apparently gave me saltwater instead of ro/di (I should have double checked it) and so it skyrocketed my salinity while I was gone and resulted in a complete loss. It was even marked ro water. I’m talking about 7 inch diameter montiporas, a hammer I’ve had for 9 months, all my fish, rare yellow pistol shrimp, zoas. I’m heartbroken honestly! I’m looking at a tank of death and contemplating quitting the hobby now. What a disaster that could have been avoided. [emoji20][emoji20][emoji20]