I have five turtles. Three red ear sliders, and two yellow belly sliders. My suggestion, is to either leave it bare bottom, or put in large river stones that are bigger than the turtles head. Aquatic turtles are known for eating off the bottom and can ingest the sand or gravel which can cause impacted bowels and possibly death.
Also, of all the plants I have tired in my tank, none have survived. If they don't eat the plant, then they tear it apart until it won't survive.
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