It is most likely due to low hardness on the water they're in. The gH should be at least ten or more. It could also be due to low pH, it should be neutral or higher (7 -->).
You should buy some water tests to test your water's (I recommend JBL) gH and pH. And see if you need to add some gH +- powder or pH +- powder. If you search a bit on the topic online, you can find other ways of regulating the gH and pH which are probably cheaper. But this is the easiest way, I think.
A low pH can cause the calcium carbonate shells of snails to deteriorate, and eventually kill the snails. A pH of 7.0+ is best.
Some snails have very interestingly designed shells and can add color and uniqueness to an aquarium. Also, snails are an algae consumer and help clean the aquarium. Some fish also require snails as part of their diet, such as some puffers.
Aquarium snails are different from regular land snails. All aquatic snails have gills. Just like their land relatives, these snails also have radula(rasping tongue),tentacles, and hard shells. Aquatic snails do not have as developed eyes as land snails. Many aquatic snails have a door or an opcerium at the entrance of their shell. Some aquatic snails also grow to the size of a baseball.
snails have shells slugs don't it is obvious
In the aquarium were water, weed, sunfish, snails, and a neon fish.
Dunno, a.k.a idk, a.k.a i dont know, a.k.a Answers cannt provide the answer currently, I'm sorry
yes
Snails dont rebuild their shells. I used to think that slugs were just snails without shells, but without their shells, snails die. Their bodies are sort of connected to the shells.
Their shells?
no
They grow them.
shells.