These amphibians, like the rest, have delicate skins and should be handled with extreme care. If you must handle your frog remember to wash your hand before (as you may transform some of the salts from your body) and after (as some of the toxins from the frogs body could rub off on your hands) handling the animal.
Waxworms and mealworms are good frog food and are easily available. Try and avoid using gravel in the aquarium holding the frog, as the animal tends to ingest it. Avoid rough surfaces as this may be abrasive on the frogs skin.
An aquarium is an easy substitute to house a lizard (if you can devote a room for your pet lizard, he is going to love it). Most enclosures for lizards can be broadly classified under three heads: temperate, tropical and desert.
The aquarium should be covered with a thin metal mesh to prevent insects (on which the lizard feeds) from flying out An incandescent lamp is also recommended to maintain the appropriate temperature. For a desert enclosure you will require some fine gravel, which will line the base of the aquarium (at least an inch thick spread is recommended here). Toss in a few rocks (preferably ones with cervices for the reptile to hide in). Leopard geckos, swifts and crevice lizards thrive well in these conditions. Iguanas, tokays and house geckos are ideal for temperate conditions. For a temperate enclosure place a newspaper at the bottom of the aquarium and add in a few plants. Here too hiding places are a must and should be included, temperatures need not be as high as in the previous case. A tropical setup calls for the same material as temperate, but the conditions should be moist, use a moss for best results. Though most lizards thrive on insects some could thrive on fruit or baby food, so try feeding them some.
Most reptiles carry a trace of Salmonella, the dreaded disease that can be transferred to humans through channels like feces, etc Same is the case with mammals, birds and fish, each of which could prove to be a potential health hazard were its interaction with us to cross the prescribed limits.
Contamination can be avoided by: Keeping the pet out of kitchens and other food preparation areas. Kitchen sinks should not be used to wash plates and tubs belonging to pets. All food and water bowls should be washed with hot soapy water and disinfected with a bleaching solution. Avoid eating or smoking while cleaning a pet. Teach children to wash hands thoroughly after handling pets. Not handling pets or their cages with open cuts, sores etc, in such cases rubber gloves should be used while handling pets.