Need help switching tanks

[sade]

Hi! I have four snails, all of them are GALS. I got my two new snails last weekend. I have my older ones in their own tank, and the new bigger ones in their own. The problem is, I realised that the tank my old ones have is bigger than the one the new snails have. It feels like the best choise is to switch their tanks so that the big ones go to the bigger tank and the small ones go to the smaller one. Do I need to wash the tanks? I just did it last weekend, but I was wondering if the smell of unknown snails stresses them out? I will be taking all the stuff from both of the tanks so that the snails living in that tank have familiar stuff around. I was just wondering if I should change the substrate and wipe the walls aswell?

[snaileyhammy]

Hello!

The snails should be fine in the tanks if you move them over, no need to wash the tanks. Definitely move the substrate and decor with the snails to their new tank though!

I hope this helps love! Let me know if you ahem anymore questions!