Slow down and secure the frog's room
A red-eyed tree frog in the first hour has usually travelled less than panic suggests, because it moves by climbing and then sits motionless, so secure the room before searching it. Close its door and windows, switch off ceiling fans, and keep cats, dogs, and curious children out, since a frog this small is easily harmed by a paw or a door swing. Dim bright overhead lights if you can search by torch instead, because a red-eyed tree frog freezes under glare and its green back disappears against leaves. Wet your hands with dechlorinated water now and keep a ventilated tub with a damp paper towel ready, so the moment of capture does not become a second escape.
Check every plant, leaf by leaf
Search houseplants first for a red-eyed tree frog, working leaf by leaf with a low torch, because its favourite daytime refuge is the underside of a broad leaf. Turn each leaf gently, look along stems and in the soil surface, and check any plant the frog could have reached by jumping or by being carried when you moved foliage during cleaning. Extend the same slow check to curtains, the backs of picture frames, lampshades, and the wall corners above the vivarium, where a climbing frog settles at height. Look for the telling details — orange toes gripping an edge, a flash of blue flank, or a smooth pale-green oval asleep flat against glass — rather than scanning for a whole obvious frog.
Follow the moisture around the room
A red-eyed tree frog seeks humidity, so after the plants, search the dampest lines in and beyond the enclosure room: bathroom tiles, the rim and underside of sinks, shower corners, laundry piles that are still damp, and the cool floor behind a toilet. Place shallow dishes of dechlorinated water in those spots as you clear them, both as refuges that keep the frog's skin safe and as stations to recheck later. Mist houseplant foliage lightly to raise local humidity where the frog may be sitting. Avoid running hot showers, scented sprays, or cleaning chemicals during the search, because residues and sudden dry heat can damage this frog's permeable skin if it is hiding nearby.
Use the night hours the frog gives you
A red-eyed tree frog wakes and moves at night, so if the first hour's search fails, plan the evening rather than tearing the room apart. Leave the vivarium door open with its plants and a water dish inside, set in the same room, because a hungry frog may climb home to familiar leaves. Sit in the darkened room after lights-out and listen for soft movements and the male's quiet call notes, then search by torch without switching on the main lights. Recheck the plant undersides and bathroom surfaces again at that point. Keep the room closed overnight, and repeat the leaf-by-leaf pass at dawn, when the frog will have chosen a sleeping leaf you can spot by its pale, tucked shape.
Get help if the frog left the room
If an open window or door makes an outdoor escape plausible, search the plants and damp shaded walls immediately outside it within the first hour, and tell neighbours with a clear colour photo what to look for on their own foliage. Ask finders not to handle a red-eyed tree frog with dry hands, but to photograph it and call you, since its skin is easily damaged. Keep indoor water dishes and the open vivarium running for several nights regardless, because most escapes end within a few rooms. Using KinsLe, the Lost Pet Alert System sends a free alert to nearby Circle of Love members and lets a finder message you directly, so a frog spotted on a neighbour's plant is reported before it moves on.