Yes, the hybrids I made are fertile. There may be a reduction in fertility, but that is not likely to be noticeable in a pond setting here there are many breeding adults.

Comment: Fertility of hybrids is a lot more common and important than what the convention of how species are often defined would indicate. Many species, including humans, show signs of hybridization in their genomes and sometimes long-term impactful crosses did not involve sister species.