Supplement
Plain calcium (no D3): How African Fat-Tailed Geckos Use It
Essential supplement
Quick answer
Plain calcium (no D3) is used always available in a small open dish. Many geckos regulate their own calcium intake by licking from a small dish.
Frequency
Always available in a small open dish
Role
Many geckos regulate their own calcium intake by licking from a small dish. Keeping one in the enclosure means calcium is always available and reduces the risk of over-supplementing D3 through dusting alone. Replace it if it gets damp or fouled — humid-hide setups make this more likely for a fat-tail than for a drier-kept gecko.