Tokay geckos are usually voracious eaters and can be fed a variety of insect prey (crickets [properly gut-loaded for at least 24 hours before feeding out], superworms, mealworms [also gut-loaded]), waxworms, grasshoppers, cockroaches, etc).
Larger tokays may take pinky mice.
In addition to having food gut-loaded prior to feeding, and it should also be dusted with a vitamin supplement containing calcium.
Juveniles can be fed daily; adults every other day or so.
They generally will not drink out of a bowl of water, so one area of a tank wall should be sprayed every day (evening) to furnish water for them to lap up. Another way to boost humidity and provide water for lapping is to place some ice cubes on top of the screened top over the plants...the meltwater drips on the leaves for easy lapping.
A shallow dish of water should be provided, and cleaned very regularly.
Leopard geckos are insectivores: feed a variety of crickets, waxworms, mealworms (in moderation only) and even an occasional pinkie mice for adults. Insects must be gut loaded for at least 24 hours prior to feeding, and coated with a calcium/D3 supplement (every feeding for young lizards, every other feeding for adults). Feed juveniles daily (a few crickets), adults can be fed every other day (6-10 crickets).
Feed crickets, freshly molted mealworms and occasional waxworms. All prey should be gut loaded and dusted with a multivitamin containing calcium (but not phosphorus).
Adults can be fed every 2-3 days and juveniles every 1-2 days.
Insects make up the bulk of a day gecko's diet in captivity, although some with eat some fruits such as papaya and mango or even fruit baby food. They should also be supplemented with a vitamin supplement with calcium and vitamin D3 (no phophorus).
Feeding Fat-tailed geckos is the same as for leopard geckos. Crickets are the best food source.
With a calcium/phosphorous ratio of 1:1 and good mineral and vitamin supplementation, Fat-tails will stay healthy. Mealworms fed once a month, after the geckos are six months old are all right. But because they are a poor calcium source, with a calcium to phosphorous ratio o 1:14, they must be supplemented. Placing them in a bowl of mineral supplement during feeding will ensure the animals ingest the needed minerals.
No wax worms should be used because they are too high in fat content and their calcium to phosphorous ratio is 1:401.
Feeding baby mice to adult geckos is not necessary, but after egg laying they can quickly help rebuild the gecko's fat reserves. Mice also have a good calcium to phosphorous level of 1:1. Remember that what goes into the gecko determines what comes out as far as healthy eggs!