dwarf cray question

My dwarf crayfish haven't attacked anything beyond eachother successfully, including neon tetras and cory cats and other bottom sleeping fish.
They are far, far more peaceful then larger crayfish.

I never had them with frogs, but everything else in that tank will be fine. They aren't nearly fast enough to catch a shrimp, and the pleco is armed and armored and more of a risk to the crayfish then the crayfish is to it.
 
Interesting.

So yeah, your mileage may vary!

I keep mine in my cherry shrimp breeding tank, and the cherries breed and grow and such nicely.
But like many things, some are different apparently.
 
I keep Dwarf Crayfish. Due to their small size, they are not likely to go after larger fish. The larger fish pose a problem if anything. They will try still though. I've seen these guys pinch the fins of a very aggressive CAE, measuring in at 7" in length. The general rule is they will try whatever they can, but you and your fish may not notice them.
 
AquariaCentral.com