Hi all, I replaced my Whites Tree Frog's substrate with these aquarium sponge for the filter. I have seen people using these for their pacman overseas and they worked great. After putting it in, my Whites Tree Frog was timid and won't move as much. So I guess I will have to give the sponge another week for my Whites Tree Frog to sink in. I will keep you guys updated
Once again, any suggestion and opinion is welcome~~