Thanks Tindo for the reassurance. Funny when I got them I was really looking forward to the relaxation but that incident made the situation turn quickly. I found Gonzo on the other side this morning. He must have jumped the divider. How he managed to squeeze between the lid and divider..... I wish I had seen that. So he is determined to be with his pal. But Kermit looked fine, what a surprise that must have been for the both them.
I will be changing the water next week, maybe I will try putting them together again.