Potentially toxic cage?

[insectsrock77]

i keep one spannish ribbed and one eastern spotted newt and both produce toxins, i have personally never seen these toxins, but i was wondering, when the newts eventually die or are moved into a new tank, is the residue from their skin going to remain in the cage? if so how can i remove it?

 

[Jennewt]

There would not be enough residual toxin to worry about. To prevent any small amount of carry-over, you could either clean out the tank normally (rinse well with tap water), or you could let the tank run as-is without any inhabitants for a couple of weeks. The latter approach has pros and cons - it maintains the tank's biological ecosystem, which is healthy, but could carry over pathogens. Any toxins would surely break down biologically in a short time.