You don't need other stuff to keep the tank stable just because of the light. Unless you have extremely strong lights so much that it would overheat your tank then that would be a problem. Since you posted in the plants section I am guessing you want to keep plants. The plants decide the level of care and what you need to put in (ferts, special substrate etc) not the lights. So your tank is fine. What exactly did you read you need to put in also? Or link plz?
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