Cajun dwarf crayfish ARE not the same as marbled crayfish. dwarf crays max out at 1.5" while marbled crays get larger. Also marbled crays can clone while dwarf crays need to have a male and female. Dwarf crays are basically brown CPO's
Well it's cheaper than what I paid, which was $20 each from http://www.marbledcrayfish.com. They were cool but will tear up your plants if you don't feed them. Cichlids love them.
I used them as feeders sometimes I never had any problems with my plants but then again I feed them daily. I have them with java fern and Anubias and some swords too. Any takers?