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LED lights don't harm the fish. The lights and the bubble wall may look pretty, but don't add anything to the tank. It's what I call "Fluff". It's something that costs money, but has no real benefit. But, if you like it, use it.
Thx BBradbury! I was concerned it might be too bright for them or bother their eyes. I feel better about using it now. I don't want to run it all the time, but I thought my grandkids would get a kick out of it. Thx again!