so i have about 10 nerite snails and recently i have noticed two of them dead but for about a month or maybe even two now some of the snails i will find upside down on the sand. They will stay like that for im not sure quite how long but next day they have moved to some other spot or i will manually flip them over to get them to be upright. However, this behavior seems unnatural, to expose there soft fleshy tissue.
Is this an indication of bad water quality?
Is this an indication of bad water quality?