
Originally Posted by
numpty
I think I would still keep them in a separate aquarium/terrarium. Geckos tend to prefer a much drier environment than newts, even during the newt's terrestrial phase. Newts will want their environment to be permanently damp, with plenty of rocks or wood to hide under during the day, and a moist substrate to patrol at night.
Another thing to bear in mind, while palmate newts aren't as rare as crested newts, they're still much rarer in the UK than smooth newts. They're only protected to the extent that selling or trading is banned, but it's probably best to leave them alone anyway.