Im about to buy a Corn SnakeI need to know what to buy for it in order to take care of it

It's going to be 4 weeks old. I need to know what kind of tank, food, if I need a heat lamp etc.

Setting Up Your Snake's New Home

Enclosure

Corns must be housed in at least a 20 gallon tank. The tank must have a secure top. A determined snake can push against screen or glass until it finds an opening big enough for its head; where its head goes, so goes its body. Some snakes will constantly rub their nose against the screened top of the tank in an effort to find a way out. The resulting abrasions should be treated with an antiseptic and antibiotic ointment. The furnishings in the enclosure should then be evaluated to provide a more natural environment.

Provide a Hiding Place

A hide box of some sort should be provided, and an interesting branch for climbing and resting. Branches collected from the wild will need to be debugged by soaking first in chlorine/water solution, then rinsed thoroughly, soaked in clean water, then left to dry in the sun. No special lighting is required.

Substrate

With corn snakes, there are a couple of different substrates that can be used, such as pine chips (not cedar chips, are toxic), indoor/outdoor carpeting and "Astroturf". If you use the carpeting or Astroturf, you must wash it then let it dry thoroughly before it can be used in the tank again; have two pieces on hand which can be rotated. The snakes will often burrow under the chips or carpet/turf, so don't be surprised if they are not always in view. If you use pine or aspen shavings or cypress mulch, the urine and feces can be scooped out with a cat litter scoop, with fresh chips added as needed. Be sure to remove soiled substrate as soon as possible; urine-soaked material become a breeding ground for bacteria and fungus. If you use this type of substrate you will have to place your snake in a secure area to feed it; you do not want it to ingest any chips.