Small Sea Turtle - Picture of Newport Aquarium, Newport - TripAdvisor

small pet turtle swimming in aquarium (350x224) gecko on leaf (350x324)
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Turtles don't just need water, they also need substrate to keep the water clean and disease-free, and a basking area where they can completely dry out, rest and warm up. Use several inches of gravel substrate that's either too small to choke on or too large to fit in the turtle's mouth. Use well-anchored aquarium wood, such as "African root," smooth, stable stones, or Plexiglas ramps and planks. Make sure your turtle can actually get out of the water at all times without being able to climb out of the tank.
In Tour Two: Baby Water Turtles we describe how we care for small water turtles in an aquarium
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Most aquatic turtle keepers who keep their turtles indoors use aquarium tanks designed for fish. Others prefer large storage containers, others use small-sized children's wading pools, and still other people have tanks custom-designed to fit some spot in their homes. Some people even build indoor ponds for their turtles, which are really cool if you have the space -- and the money. Penn Plax Sea Turtle Small Aquarium Ornament, 3
Photo provided by Flickrit to some friends who were confining their turtles in small aquariums.
Photo provided by FlickrLong Island Aquarium's Turtle Bay residents are as hungry as they are friendly. For a small fee, you can purchase some turtle food to feed all of our turtles.
Photo provided by Flickr
Turtles need enough room to grow so make sure your tank is large enough. A lot of freshwater species of turtles can grow to 12″ long. The 20 and 30 gallon aquarium sizes are going to be a bare minimum of what you can use for housing turtles. We get a lot of emails asking if 5 gallon aquariums work for turtles. The answer is a NO because they are too small.Aquatic and semi-aquatic turtles need an aquarium (or other waterproof enclosure) that provides plenty of room for swimming as well as room for the turtle to climb out of the water, dry off, and bask under a heat lamp. One or two small turtles could live in a 20-gallon aquarium sectioned off to provide both environments (water and land). Figure, as a general rule, an 8-inch aquatic or semi-aquatic turtle needs at the smallest a 20-gallon (low and long rather than tall) aquarium. Each added turtle should have an additional 10 gallons. So if you have three 8-inch turtles, the smallest the tank should be is 40 gallons. Most adult turtles eventually need a bigger tank than 20 gallons. Before getting a turtle, prepare for this eventuality. As far as housing goes, bigger is better. Many aquatic turtles are active swimmers, so choose the largest size enclosure possible. Glass aquaria are a popular choice. A 30-gallon tank is the absolute minimum size for smaller species measuring between 4 and 6 inches. For turtles between 6 and 8 inches, a 55-gallon tank is appropriate. And for turtles measuring more than 8 inches, tanks in the 75- to 125-gallon range are a better choice. If you start with a younger, smaller turtle, a smaller tank is acceptable as long as the enclosure size increases as your turtle grows.You can add and some small green plants inside the aquarium to give the baby pet a nice and natural atmosphere even if it’s inside an unnatural setting. Making a more natural environment and enclosure for your baby turtle can help lessen the stress on the baby pet. You also have to secure the enclosure and never to allow your pet turtle to roam around your house.
This is the downfall of having a pet turtle. Just because you can’t put a turtle in a small box as a cage and walk away. They need room to move around and especially if they are past their youth age. Aquarium size requirements start at 40 gallon breeder tank. The 40 gallon breeder is said to be the bare minimum size that a person needs to house ONE turtle. If you want more than one turtle than you should probably get a 55 gallon and even then that will still be crowded. They make lots of unique styles of “breeder” series of tanks that are more short and spread out which is best for turtles. It makes no sense to have a high or tall aquarium when the turtle can’t even utilize that space.How often the water is changed depends on how large the aquarium is, how much water is in it, and how many turtles are being kept. If there is a large volume of water, a good filter is being used, and only one turtle is being kept, the water won’t have to be changed as often as it will in a small aquarium with no filtration and multiple turtles, which might need daily water changes.