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When I do water changes, the change water is within a degree or two of the tank water, so I don't think that could be it unless he's more sensitive than I think. I'd thought I was doing something horribly wrong to cause him to molt so frequently; I didn't know it could be simply because he's young a...

I have a native cray; a bait bucket "leftover" that I believe to be O. immunis (thanks to CanadianCray). He was a little over 1" long when he was given to me on the 29th of May. I say "him" for the sake of simplicity, not because I presume to know its gender. He was temporar...

Ah--so just a few species, then. ;) Thanks for the link--I can go back to the creek any time, so I'll watch these guys and see whether I can't figure out what they are as time passes. Whatever critters are making the holes in the bank are probably their parents. It'll be fun to see what the little g...

I found a bunch of these little guys in a creek in southwest IL, about 60 miles east of St. Louis, MO. This one is approximately 1" long and I didn't see any larger than 1.5". The creek is in the woods and the depth varies, depending on season, from a few feet deep to nearly dry; the botto...