Really depends what kind of corals you are trying to grow. LEDs are nice, pretty affordable. T5s are simple and reliable but you will need to replace bulbs as they age. I really like the noopsyche LED setup I am using now. Around $240 for the light, controller and mounting bracket. You can do an ocean revive LED light for ~$180 I think, or even a “black box” LED from amazon for around ~$80. Black box lights will grow mostly all softies and LPS.
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