I was wrong [cref another-day-another-fish-funeral about Pokey the snail]. He died today.
I ran ammonia and Ph tests on the tank water and was shocked by the results. The ammonia test was off the charts. The Ph was also out of whack. I took the filter housing off and scrubbed it with an old toothbrush because it had some slimy gunk in it. I also changed the filter and added some drops that are supposed to help. I put about two gallons of fresh water in a bucket and put the de-chlorinator in it, so tomorrow night I will replace some of the water in the tank. After this, we’ll be testing the water weekly to make sure this doesn’t happen again.
Keeping fish is sure a lot of damn work.