Sounds like you have quite the zoo too!
As for the hermit crabs, I think I remember what site you're talking about. Personally, I think that there is a wide level of variance between caring for an animal on paper, and caring for it in real life. I've kept close to twenty hermit crabs in my life, most in decorative shells, and never had a problem. I can see how there is potential, but honestly, it's not a real concern, if you are seriously considering hermit crabs as a pet.
I love my RES! Her name is Bessie, and she is too cute. She is also very social. When we clean her tank, she likes to follow us around. She also takes immense pleasure in chasing the dogs, who are inexplicably terrified of her. She is still fairly young, but I raised her from the time she was quarter sized.
I love rare fish! I currently have three baby flounders, which are super fun. I also have Blind Cave Tetras, which are amazing to watch.
I'm so glad to see another comet keeper! I rescued three dozen foot long pond comets back in January, and I rehomed all but 5 that I'm keeping for myself. I also just rescued 5 baby PCs that I am in love with! I also have an adorable fantail, who is all whit except for an orange "Y" on his face and an orange "saddle."
I appreciate the greeting, and I'm already having a dandy time!