Originally Posted by Byron
Various corys can react differently when they are introduced to a new (to them) tank. Some settle in immediately, others charge up and down the sides for hours or even days.
If you have a 95 gallon tank, yes, you have lots of room for more cory species. A group of 5 of each species works well, and you could have several different species.
+one, do also consider that most literature states that the fiddler crab you have is brackish water creature that seldom lasts long in freshwater aquaria .
The cory's will not do well in brackish water.(salt)
The fiddler crabs also need somewhere to haul themselves out of the water on occasion.