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As others have said, the tube uvb is crucial. You can buy a regular fixture for it though on Amazon for cheap. I bought this one, it's for a 22" bulb though. For 150 gallon you may need longer, should be 2/3 the length of the tank.
https://www.amazon.com/dp/B06XP8F42M?ref=ppx_pop_mob_ap_share