Adult male Italian crested newts ( triturus carnifex )
CB 2022 ,young adults between 10 and 12 cm ( still have lots of growing to do )
Surplus breeding stock 
The Italian crested newt (triturus carnifex ) is a large species reaching up 16 cm , native to Italy and the Balkans but introduced to other areas of Europe including the uk where it has some small populations mainly in the south of England where it is of course non native and has been introduced via the pet trade ( never release or allow this species to escape from captivity ) ,  Triturus Carnifex is very closely related to our native great crested newt ( triturus cristatus) and both species can interbreed creating hybrids ,which could cause a considerable threat to the great crested newt ,it can be difficult to tell both species apart but T.Carnifex is usually more grey/ chalk coloured with a brighter yellow belly  ,large dark spots on the flanks and has smoother skin , females also often have a yellow strip down the back which is absent in adult great crested newts ,Italian crested newts can live up to 18 years but between 10 and 15 is more common.
CAPTIVE CARE: 
Italian crested newts are easy to care for in captivity ,a paludarium set up is best these newts spend most of the year in water but will sometimes venture onto land at night and usually hibernate on land in log piles , a natural set up is best with a substrate of soil or coconut coir , lots of plants ,moss some rocks or wood  and of course a water container , we keep our amphibians in bioactive setups with lots of worms ,springtails ,woodlice and other insects living the soil ,these as well as helping keep the enclosures clean also provide a natural food source for the newts ,ensure the lid of the enclosure is secure as most newts are good climbers and can can squeeze through narrow gaps.
FEEDING :
Italian crested newts are quite large and have a large appetite they will eat a wide range of foods 
most standard insect foods are suitable ,make sure  the food is the right size for the newts and not to big ,foods Including:
Crickets 
Mealworm
Waxworm 
Earth worm
Calci worm
White worm 
Isopods ( woodlice )
Beetles
And flies
While commonly stated newts will eat snails and slugs these don't tend to be preferred ,
 When the newts are living in water they can be fed most Live /frozen foods
Bloodworm
Daphnia
Krill
Gammarus
Tubifex
Blackworm
Water Louse
Midge/ mosquito larvae
As with all amphibians and reptiles in captivity smooth newts require a calcium supplement in there diet ( dusted over there food ) to avoid getting metabolic bone disease ( MBD ) ,a supplement with both calcium and additional nutrients is best ,we  use arkvits but there's many different suitable brands ,foods like calci worm and isopods are also an excellent source of calcium for the newts.
TEMPERATURE :🌡️
Between 13°C and 25°C
HIBERNATION TEMPERATURE :🌡️
between  3 °C and 5 °C
 These newts don't require hibernation unless you want to breed them.
HUMIDITY :🌧️
85 - 100%
BREEDING:
T. Carnifex requires a hibernation period to breed successfully ,this can be done naturally by keeping them in an outdoor enclosure over winter or artificially by keeping them in a fridge for 2 to 3 months at  3 °C to 5 °C  ,the fridge must have  accurate temperature control with a decent amount of space inside to ensure enough air flow, a faunarium or storage container with air holes is a perfect hibernation enclosure doesn't need to be too large as there not very active during hibernation but depends on how many newts you have ,a substrate of soil and lots of damp sphagnum moss to keep the newts moist but not soaking ,a small water bowl is also important ,check them around once a week and give them a spray if it seems dry ,always feed them up well in the weeks before hibernation so there in good condition and have enough fat reserves.
Italian crested newts reach sexual maturity from 1.5  to 3 years depending on temperature and food availablity ,when ready to breed the males will take on brighter colours usually chalk / grey to silver and develop a large characteristic crest similar to the great created newt ,tail fanning from the male is a clear sign the newts are in full breeding mode , After mating the female will begin to lay eggs usually on the leaves of aquatic plants where she will carefully fold the leaf around the egg with her back feet and can keep laying between 30 and 300 eggs in a 2 to 4 month period ,they can take anywhere from 2 weeks to a month to hatch depending on temperature.
LIGHTING :💡
While it's disputed by amphibian keepers if newts and salamanders need UVB lighting as they are mostly nocturnal and wouldn't have much exposure to sunlight naturally ,we use UVB lights for all our amphibians , even though the newts wouldn't have much sun exposure in the wild they would still experience brief periods of sunlight as they squiggle through the undergrowth ,a 5%  UVB is sufficient for them but UVB certainly isn't essential for this species.
There are many different methods of keeping amphibians in captivity and different keepers and breeders have there own methods ,our advice is based on our own experience and what we've had the most success with in our own animals.