Acanthoscurria geniculata & Brachypelma hamorii Husbandry/Care

[The Grym Reaper]

oh hahaha that's cheating!

Yes but I value the use of my fingers

 

[Kendricks]

If a genic constantly hovers around the water dish, it's probably too dry.

Yep, fail-safe indicator right there. Works great with my specimen.
Probably works with most species (that don't hide all the time).