hi acenorm, thanks for quick reply.
how naughty ive just been back and reread what it says
and it states bee nerites bumble bee snail
(FOR FRESHWATER) and as they are in "freshwater"cannot reproduce
not sure if im allowed to say where ive read it but put it this way
you can buy them on line
thank you will not bother now.
oh yes nearly forgot was mad with that
my tank is 5ft