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Awesome! For the longest time, I've stuck with dogs and birds as pets. Lately, me and my wife have been into Tarantulas. Like your crayfish, they too are very interesting to watch. I didn't know then that they molt to grow. It's nice to have different pets. It makes you know more about how fascinating animal kingdom is.

Absolutely :) I have had many different pets in my life... as for Claude, I dedicated a post to him some time ago, you can learn a bit more here https://steemit.com/animals/@phortun/meet-claude-the-blue-crayfish-the-boss-of-my-fish-tank