My mom is very upset right now.

We've lost 3 fish today, some that she's had for 3-5 years.

They all seem to be sick, and all seem close to dying.

This seems to have happened after we bought 6 little fish from a reptile store, who were going to be reptile food.

I know nothing about fish, so I told her I would try here.

Any advice/suggestions would be great!

Thanks