Gideyon Posted September 2, 2021 Share Posted September 2, 2021 (edited) I saw advertised a tank that was made for salt water fish. I've also seen people say they're using a salt water tank (the structure, not the water) for their fresh water fish. What makes a salt water tank special for that? Other than maybe a blue light. I thought the only difference between the two was the water, not the tank themselves. Am I missing something or is it just marketing? Edited September 2, 2021 by Gideyon Link to comment Share on other sites More sharing options...
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