crayfish/crawfish

They're all mudbugs.

If I'm not mistaken, English 'crayfish' was originally a mispronunciation of French 'ecrevisse'. Crawfish and crawdad are further variations from that.
 
A great 'mudbug'. Were you thinking of perhaps adding one to a tank?

maybe, I wasn't sure, I was thinking of a crwfish or maybe finding dwarf crayfish (something like blue)

What do you think? I would have to move some fish around though. also I don't even know where to find dwarf crays. any input would be great!
 
Dwarf crayfish are the only crays considered fish-safe. There are several places online that sell them, and I believe some AC members also do. Search the classifieds area here.

There are a few different species of dwarf crayfish, but all are in the genus Cambarellus. C. schufeldti, the Cajun dwarf cray, is two-toned light tan and brown; it comes in a striped and an unstriped morph. The Mexican species C. montezumae is similar. C. patzcuarensis, another Mexican dwarf cray, is bright orange. There are others, but I haven't seen them for sale.
 
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