As long as you don't overwater the sponge, and follow the guidelines which are supplied with the nests (add a few drops of water at a time and wait 10 minutes to see the effect on the humidity within the nest), the sponge should last quite a long time. Overwatering can sometimes lead to a build-up o..
As long as you don't overwater the plaster, and follow the guidelines which are supplied with the nests (add a few drops of water at a time and wait 10 minutes to see the effect on the humidity within the nest), the plaster piece should last many years.However, if you want to move a new colony into ..