Even though they never came in contact with one another, there is still a chance of cross contamination with parasites, bacteria, etc.
If it were me, I would completely clean out that tank and sanitize everything. Throw away things that can't be sanitized. Start over fresh. Then, when you get your new toad, put him in a simple quarantine tank and have fecals done to make sure it is free of parasites.
Those are just suggestions for your next toad. What we will also need to know are,
What are your temps in the tank?
How big is the water section?
Are you dusting with a vitamin and calcium supplement that is less than 6 months old?
Those are my troubleshooting questions and suggestions. I am sure there is a care sheet for BB toads on the board somewhere as well.
If it were me, I would completely clean out that tank and sanitize everything. Throw away things that can't be sanitized. Start over fresh. Then, when you get your new toad, put him in a simple quarantine tank and have fecals done to make sure it is free of parasites.
Those are just suggestions for your next toad. What we will also need to know are,
What are your temps in the tank?
How big is the water section?
Are you dusting with a vitamin and calcium supplement that is less than 6 months old?
Those are my troubleshooting questions and suggestions. I am sure there is a care sheet for BB toads on the board somewhere as well.