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Even though it is a relatively large frog, the Pacman frog prefers to sit and wait for food than spend a lot of time hopping about. Purchase a tank or aquarium that is roughly 20 by 10 by 12 inches (51 by 25 by 30cm) and has a capacity of 10 gallons (38L) for your frog. Pacman frogs are used to being on the ground rather than moving vertically, so your frog will be more comfortable in a tank that is longer than it is tall. Tanks and aquariums should be available online or from your local pet store. Pacman frogs like to burrow into the ground to sit and wait for something to eat. As such, you'll need to put down a layer of potting soil, coconut husk fiber, or another soil-like substrate. Purchase the substrate of your choice and pour roughly 2 inches (5.1cm) over the bottom of the tank. Avoid using a substrate that has fertilizers or any other chemical add-ins, as they may hurt your frog. If you use substrates made up of sand, gravel, or big pieces of bark, your frog may ingest some while eating. This can lead to choking or indigestion, which could kill your frog. If you must use a gravel substrate or something similar, feed your frog with tweezers to reduce the chance of it eating chunks of rock. Your Pacman frog will need to remain moist and damp to stay happy and healthy in its new enclosure. Put a shallow dish in a corner of its enclosure where your frog can sit and be sheltered. Fill the dish with filtered water, bottled water, or water that has been treated with a dechlorination tablet. Tap water often has added chlorine and other chemicals which can be harmful to your frog if absorbed. Always use filtered, bottled, or treated water when refilling the water dish. Your frog will spend more time sitting in the water than swimming, so make sure the dish is shallow enough that your frog can comfortably sit in it. Purchase some artificial or real plants to put in your frog's enclosure, particularly around the water dish. Add a small log or branch to the tank that your frog can hide or burrow under, or put in a medium-sized rock it can sit on during the day. Place these decorations around the enclosure to decorate it and give your frog places to hide. Make sure that you don't overcrowd the enclosure with decorations. Try and leave around 1/3 of the tank empty so your frog still has room to move around. Covering the back and sides of your aquarium will help make the frog feel more enclosed and at home in its tank. Look online or ask at your local aquarium to find a rainforest backdrop for a tank or aquarium. Attach it to the outside of the glass on the sides and back, so that it faces into the tank. A background that looks like a rainforest will make your frog feel the most comfortable and at home, but anything green and leafy will work just as well. Adding a backdrop will also improve the look of the tank from the outside. If you would rather your entire tank be clear glass so that you can see through it, you can skip this step. Adding a background will make the frog more comfortable, but excluding it won't make its enclosure uninhabitable. Pacman frogs are adjusted to living in temperatures around 70F (21C) when in the wild, so your frog will need a similarly warm environment in its new enclosure. Place a heating pad underneath the tank and plug it in to begin regulating the temperature. Heating pads designed for Pacman frogs and other amphibians should be available online or from your local pet store. You should always place the heating pad under the tank, rather than placing it under the substrate. As your toad burrows, it could burrow down far enough to come into contact with the heating pad, and it could suffer a burn. Purchase a terrarium or tank thermometer and attach to the outside of the glass in a corner of your tank. Check the thermometer at least once each day to make sure the inside of the tank remains around 70F (21C). As your frog can burrow into the substrate or sit in the water to regulate its temperature, some believe you don't need to worry too much about the temperature. As long as it's between 60 to 80F (16 to 27C), your frog should be comfortable. Thermometers designed to attach to the glass of a tank or aquarium should be available online or from your local pet store. A hydrometer will measure the level of humidity inside the tank, which will help determine if it's within a suitable range for your Pacman frog. Purchase a hydrometer and attach it to the outside of your tank, near the thermometer. Check it regularly the ensure that the tank is humid enough for your frog. Pacman frogs go through wetter and drier periods in the wild, so your frog won't panic too much if the humidity is off. Try and keep the humidity inside the tank around 65%, misting the tank more or less frequently to adjust it if need be. UVB lights may help your frog process calcium and other vitamins, as well as helping any real plants in your enclosure to thrive. Purchase a tank light and fit it with a UVB fluorescent light. Place it over the lid of the tank, and set it on a 12-hour timer so that it doesn't bother you or your frog at nighttime. Some people don't think that UVB lights help Pacman frogs that much, but at the very least they don't hurt them. If you want to go the extra mile for your frog, purchase a lamp with a UVB light. Otherwise, you can skip this step and your frog will still be happy and healthy.

Summary:
Purchase at least a 10USgal (38L) tank or aquarium. Lay down roughly 2 inches (5.1cm) of a substrate material. Add a shallow dish of non-chlorinated water. Provide logs, branches, and rocks for your frog to climb on. Use a rainforest background to make your frog feel more at home. Place a heating pad underneath the tank. Attach a thermometer to the side of the tank to monitor its temperature. Put in a hydrometer to keep an eye on the humidity. Add a UVB light to your enclosure.