[DPfarr]

I notice my tinc tads blow little bubbles around the circumference of their cups. They are persistent and around the entire circumference.

I assume they are a waste of some sort?

 

[Chris S]

I notice my tinc tads blow little bubbles around the circumference of their cups. They are persistent and around the entire circumference.

I assume they are a waste of some sort?

Tadpoles can breath air, and do so after 4-5 weeks to help develop their lungs. If they are doing this a lot, it could indicate low oxygen levels in the water.