What wattage bulb is ideal for a ball python's 20-gallon basking spot?

50-watt spot/heat bulb is usually sufficient.Put a 10 to 12% UVb fluorescent tube up to one half the length of the vivarium and fix it as far into the hot end as possible Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

That would be fine. A 30 to 40 gallon tank is recommended for most adult ball pythons. This will save time and money since a baby ball python will eventually outgrow a 20 gallon tank. I always recommend getting the largest tank your budget and space allow. Be sure to have a thermometer on each end as well as at the basking spot. A hide at each end would also be recommended.

It is okay for nighttime temps to drop a bit. Make sure they don't go lower than the low 70s F. Consider a thermometer at each end of the enclosure to verify temperatures. If necessary, a 60 watt CHE would probably heat or maintain temps above the low 70s F in a small tank overnight. You would need to test it out. Save the receipt in case you need to return it or buy a 100 watt CHE and move it farther away from the tank.

The ReptiSun 10.0 bulb by Zoo Med is widely recommended. It should not be obstructed by either glass or plexiglass or be more than 18 inches away from the basking area. If you can't get one just yet, natural unfiltered sunlight can be provided daily if you can do it safely and without risk of escape.

Once he acclimates to his new home, he may become more active. Ball pythons are mostly nocturnal also, so if the room is bright he may seek dark spots and come out at dusk or overnight. Keep a large bowl of water in the tank. A deep layer of porous substrate may hold moisture longer. You can even add some moss. Use a hygrometer to monitor humidity. If it's too high, you can predispose your python to respiratory infection.

A RES requires full spectrum lighting (UVA and UVB) and lighting that provides heat. The dry dock, or basking area, should be completely out of the water. Basking temps should range between 90F and 95F (32-35C). You should place the UVA/UVB bulb as close to the heat lamp as possible. It should be no more than 12" away from your RES and should not have a barrier between it and your turtle. Glass, acrylic and plastic block UVB while screens with grids under 1/2" can obstruct a good portion of UVB rays negating the health benefits. Lighting should be on for around 12 hours a day, depending on the time of year. Full UVA/UVB bulbs need replacing every 6 months. The simplest combination for adequate lighting is a UVA/UVB fluorescent bulb and an incandescent light bulb (for heat). Incandescent light bulbs are standard household lights easily purchased at stores such as Home Depot or Lowes. Make sure your RES cannot splash water on it or come into contact with it. You can also consider halogen lights and red heat bulbs for supplemental heat. You can buy the UVA/UVB bulbs at most pet stores. Search in the Reptile section. They can also be purchased online for around $30-$40. ReptiSun 10.0 (by ZooMed) or ReptiGlo lights are quality full spectrum bulbs.

Corn snakes can grow to as long as 5 feet. On average, they grow to 3-4 feet. A 10 gallon tank is too small. At minimum, a 20 gallon enclosure is recommended. A temp range of 75F-85F is best. They do not "need" a UVB light source but seem to be healthier with one. At 2 years of age, it should be eating adult mice. If it can't, feed whatever you can to get it back into a positive plane of nutrition so it can grow properly. Consider an exam with your veterinarian or an experienced herp vet to diagnose and treat any pre exiting conditions. Submit a stool sample to diagnose intestinal parasites. More information regarding care can be found here: http://www.anapsid.org/corn.html