those are not Ramshorn, but potential plant eating snails
that often hitchhike from tank to tank during plant trades.
I just squeeze them with tweezers to crack the shell,
then my fish gladly eat them. I have Botia in my tank
and they don't seem interested in eating these snails.
left 1-2mm phony sideways ramshorn, ~ ~ ~ right 1-2cm genuine Ramshorn
that often hitchhike from tank to tank during plant trades.
I just squeeze them with tweezers to crack the shell,
then my fish gladly eat them. I have Botia in my tank
and they don't seem interested in eating these snails.
left 1-2mm phony sideways ramshorn, ~ ~ ~ right 1-2cm genuine Ramshorn

