While visiting family for Christmas, our pet sitter added tap water to our leopard frog tadpole. She replaced almost all his water with tap water. He isn't moving much and looks very pale. He spent about 3 days in the chlorinated water while we were away. As soon as we got home and learned what happened, we replaced his water with dechlorinated spring water, but he still seems sick. I can't find any information on the internet about whether there is anything we can do to help him. Any suggestions would be greatly appreciated!