Hi Gentlemangorath,
To monitor food intake, poop and overall health and well being of any newly acquired frog(s); they should be in a 'quarantine' environment for at least 30 days. Example of a quarantine set-up can be found here. This is important to head-off any problems you might find ie an ill frog, such as one that might have runny poop etc.
http://www.frogforum.net/tree-frogs/...-supplies.html
As well, you will find instructions to 'sterilize' tank, and tank things. Wooded or porous objects can be baked or boiled. Everything else can be give - a VERY - diluted bleach dip, including plants. After a bleach dip, everything needs to be well rinsed, rinsed, rinsed in water w/ de-chlorinator to remove remnants of the bleach.
Lynn