A New Snail

After the death of the apple snail and with the nitrite levels almost down to zero, I bought another snail, before my daughter noticed the absence of the original!

I could tell the original snails apart, but the new one looks identical to the surviving snail. I'm sure I'll spot some difference that lets me tell them apart. But I've spent half the day looking for the original snail. It suddenly appeared this evening - no idea where it's been hiding. No wonder the bristle nose can hide well if a snail can go missing.