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Hmm, I wasn't aware that the stingray had a freshwater cousin...
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Yep there is and they get very big.
In a freshwater tank, IMO the choice is yours, but get into it knowing the consequences of your choice up front.
IME and in addition to Ahill's comments sand also allows for anaerobic bacteria pockets, and the formation of Hydrogen sulfide (rotten egg smell) not good.
Sand will compact very easily and as mlum accumulates will become hard, and therefore not good for root development if you want to add plants.
IMO and IME, as a planted tank person, sand has a "0" CEC. "Cation Exchange Capacity" Very important if you want to be successful with plants.
Simply Put. CEC means a substrates ability to ADsorb / ABsorb minerals, nutrients etc. and make them available to plant roots.
As always, Look before you Leap. 200 pounds of substrate is a lot of substrate.
Jay