Yes and No, if the aquarium or pond is large enough they may get along fine only crossing each others paths less than a time or two. However, just like with any other breed of aquatic turtles they each fish and technically an algae eater is a fish. You must keep in mind that the habitat should be as large as possible because any kind of animal will grow and they will need all the room they can get.
I had a red ear slider in a 20 gallon long terrarium with guppies, snails and of course a chocolate colored algae eater. That poor sucker hide under the basking perch and hardly ever came out. When summer came I removed the turtle and placed him in his new out door pond and found that when I examined the algae eater, all of his tail fin had been eattin off and all the guppies and snails had been eattin as well (that's why I put the snails and guppies in to begin with)! So if you want to take a chance and place one in with a turtle that has too small of living area, chances are that the algae eater will be eattin or he will be maimed. Good Luck, I hope that this answers your question. Oh by the way, don't place a turtle in a pond with any size goldfish and exspect them to be there any time latter, my 7-8 inch male red ear slider ate 26 medium to large size goldfish over night. Needless to say, I shall not be doing that again. He can stick with the guppies and dry pellets and lettuce that I give him.
Aquatic turtles are the most popular reptiles that are kept as pets. There are many aquatic turtle species. These turtles live in water and live 6 to 35 years.
Flatworms
Of course they can - they're an aquatic species !
depends on the species. aquatic turtles live in streams, ponds, or lakes terrestrial turtles live in fields or forests
Mostly in salty water bodies
The ecosystem of a turtle varies upon which specific species you are referring to. Most turtles, however, prefer being in places that they can bask in the sun in, and that are near constant bodies of water.h
The word aquatic applies to plants and animals that live in water. Fish and sea turtles are aquatic animals for example.
Aquatic turtles, such as red-eared sliders, live for several decades, and can potentially outlive human beings. I remember reading an article about the oldest known aquatic turtle still alive in the United States; it was around 60 years old (almost as old as its owner). I tried to find the article again, but I couldn't. Sorry. Sea turtles can live even longer; it is not unusual for them to live well past 100 years old.
no they cant live in chlorinated water like other aquatic animals
If you are asking if Koi like to eat live food then the answer is "yes they love live Earthworms and many other living aquatic insects, larvae etc.
Aquatic turtles, such as snapping turtles and red-eared sliders, live for several decades, and can potentially outlive human beings. I remember reading an article about the oldest known aquatic turtle still alive in the United States; it was around 60 years old (almost as old as its owner). I tried to find the article again, but I couldn't. Sorry. Sea turtles can live even longer; it is not unusual for them to live well past 100 years old.
The tortoise is the land-dweller. Turtles are primarily aquatic.