I also wanted to mention that a week ago I posted about the power being off in my home for more than 24 hours due to evacuation and Hurricane Gordon. I was worried about my tanks. I did frequent water changes and kept an eye on the fish. I only lost one platy. All other fish are doing fine. Maybe what few plants I have (lots of java moss) helped. Who knows? Just glad to still have my Tiger Barbs. Tracie