Fish are great to have around children. My grandson is why we started keeping fish. It really helped him stay calm and not over react to, well to life in general.
A friend of mine owns a Daycare Center. She works primarily with special needs kids. Kids like my Grandson who has Asperger's Syndrome.
She saw how much having fish helped Casey, so she decided to set up an Aquarium
for her daycare kids. I helped her set it up and get it cycled and now the kids help her with the general maintenance. They are all learning how to properly care for FW fish. Things like compatibility and water chemistry.
The kids absolutely love it and seem clueless that they are being educated at the same time.
It was suppose to be something to help with the afternoon quiet time but has become so much more.
Didn't mean to ramble, my point is you may want to try setting up a tank at the Daycare where you work. It could help to decrease the stress at work for you and for all the kids.
It made a big difference at my friends Daycare Center.