
Originally Posted by
John
That frog was a goner when it arrived. I would demand compensation from the seller if I were you. If they were shipped together, the other one has already been exposed to whatever killed the dead one, so I wouldn't worry about it at this point. Just keep an eye on the live one and make sure it keeps up a healthy appetite.
As a routine, replacing a the substrate depends on what it is, how big the terrarium is, etc. In tropical terrariums I rarely replace the substrate more than once every few months. In dart frog terrariums I may wait 2 years or more, but in tree frog terrariums I would say every 4-6 months. It's one of those things where you have to monitor it under whatever conditions you maintain.
Can't tell you to change substrate type because I can't tell what it is that you're using.