I agree that technically Huck is probably the better fit for the theme, especially his house. I feel drawn to Frobert more though and he fits well too. Frobert seems to be based off the green and black poison dart frog. They are found near small bodies of water in the rainforest. That is close enough to a forest creature for me!
After reading they are poisonous it gives me a fun idea to put a little poison shop outside his home. He does it for good reasons though, he is too cute not to lol. Poison being used in medicine and as a treatment for certain ailments is not unheard of!