Snail Identification please

[Niton]

Hi everyone.
I've noticed a steadily increase of these snails in my tank over the last few weeks.
Can anyone identify them and if they are a pest?

 

[mort]

Looks like one of the less commonly coloured ramshorn snails. Not a problem with plants but populations can increase quickly.
You might be able to sell them on if they are the blue spotted ramshorn.

 

[Niton]

@mort thanks for the suggestion. It does look like they are indeed blue leopard ramshorn snails, any idea how big they get? Might see if the LFS would be interested in swapping some for some fish.

 

[mort]

They reach 3-4cm or so.