How are Dendrobates Imitator? Do they call what does it sound like how easy are they to care for? Are they easy to breed?
I wouldn't put more then 3 at most, not to say more couldn't be added but then you can get into agression issues and fights for available space. Plus it also depends on how the viv is planted, kinds of plants, how much room the background takes up of the viv is there gonna be a water feature? All of those things takes space for frogs.How many could you put into a 18x18x18 vivarium?