Greetings! This is my first post here. Good ol' Google.
Anyhow, I have a 55g tropical tank that is mostly a wide variety of catfish. I set it up January of this year and although it took a while to cycle, everything is running very smoothly now.
It is properly cycled with all good water test results. I have water sprite and wysteria in it along with lots of fake plants to act as hiding places. I am using the normal retail gravel found in any LFS.
I use my city tap water with Aquasafe and other necessary additives. I do add aquarium salt after reading that it does benefit even freshwater fish. I add it according to the directions. All my fish are fine and I rarely have any die. Plus I heard that apple/mystery snails will tolerate salt added correctly.
But I have/had two snails since week 1 and since they've been in my tank their shells have steadily dissolved to where you can almost see through the shell and near the opening it has completely eroded.
One snail ended up either dying or was pulled out of its shell by the fish. The other snail is hanging on, but looks terrible.
Now here's the thing. City tap water should be soft, but my test results indicate that its very hard. Is that the salt doing that?
If my water is so hard, why are my shells dissolving?
I also have a dozen ghost shrimp that seem fine, but they molt so I don't know if its the same.
Someone please help.
I can provide as much information as necessary.