Nice find. Periodically weighing your frog can also be a good idea so you have a baseline to compare with in the event your frog gets ill, and it can also help you measure growth.

I use one of these Lee Valley Tools - Important Announcement (Canadian store but will do mail order internationally). Outside of websites catering to drug dealers, there aren't so many options in portable scales but this one is a good balance of price, accuracy, and size.

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