Dee00 Posted July 7, 2021 Share Posted July 7, 2021 (edited) Hi, I am looking Into getting an LED lights for a planted tank that's 48" x 24" with the height close to 36" (which is really tall). Obviously with a tall aquarium I am concern on the brightness of the lights that I need especially for a planted tank (substrate will probably around 4.5" depth). I've tried looking into what others in the hobbies do with their tanks and I am finding it a bit hard to find anyone with a similar set up (a tall tank). The general consensus is that the height will definitely impact the light penetration. As such I have been looking at various lights' lumens values and what confuses me is that all the high-end or Pro WRGB LED lights lumens figures that I could find max at around 5,000-8,000lm (depending on which brand). On the other hand, full spectrum LED lights which from what I research are more for the plants with medium intensity requirement has higher lumens value (around 12,000-17,000lm) than the lights designed for high-light intensity plants such as Plant Fluval, Chihiros WRGB Vivid, etc. So I am confused how to strike a balance between having enough penetration (using the lumen value) and still have WRGB feature to ensure specific wavelengths are available for photosynthesis & as nutrients, while trying to keep cost as low as possible. Am I missing something here or have I misunderstood it? I am fairly new to this hobby so please let me know, any help or input are welcome. My head is about to burst trying to make heads or tails of this matter. Cheers, Dee Edited July 7, 2021 by Dee00 Link to comment Share on other sites More sharing options...
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