Keep it civil people.
To answer your question a blue crayfish would be fine in a 10-20g tank. They can be housed with fish but if they are small fish they might before come food and if they are too large the crayfish might become food.
To answer your question a blue crayfish would be fine in a 10-20g tank. They can be housed with fish but if they are small fish they might before come food and if they are too large the crayfish might become food.
