With dragons the best way to get the calcium in them is to dust your insect feeders 5 days a week, and the salad also 5 days a week.
With geckos, leave the dish.
Janie
That is actually the problem. They can ingest too much and get sick from that. Best way is to toss a pinch into a baggie, then the feeders. Shake gently and dinner is served! ( or breakfast )
Janie.