Non, but birds such as magpies and herons will eat them
Cats do attack and eat newts _ see http://george-online.blogspot.com . Froglife (www.froglife.org.uk) suggest making sure there are plenty of amphibian hiding places -- weed in the pond, log piles, long grass etc. The cats I know that catch newts get the newts when they are out of the pond but I expect some cats will fish them out of the pond too. Some cats clear ver small ponds of goldfish! More on www.celiahaddon.com
Frogs,newts and fish
Newts either just walk at the bottom of the ater or they swim
the things that eat and treat newts
yes, bids do eat newts
because they are anphibians and need water
Under water newts eat worms.
Newts (various species).
Yes, it is because without any algae some living animals in the pond would die. Algae can be food for some creatures in the pond. If your pond is just for admiring and not for living creatures, no, it isn't because the algae will take over the pond and no living creature is in it to eat the algae.
Newts, Natterjack toads
Newts do not generally eat leaves. A newts diet generally consists of earthworms, snails, small fish, and a variety of insects.
Newts are One of Earth's Most Toxic Creatures.