I have been looking at these on-line and was wondering if anyone has any experience of either or both of these? Some reviews have said they need to be sanded down before use, and can wear away easily. However, generally Bettas seem to love them. The ones I have come across are by ZooMed.
OR, have you used any other floating device for your Bettas?
OR, have you used any other floating device for your Bettas?