sen5241b December 10, 2018 Share December 10, 2018 I have an AI Prime LEDs with 180 PAR near the top of the rocks. My zoas grow but slowly. Back when I had MHs they grew like 3x as fast. I've heard other's say zoas grew fast under MHs. Why? Link to comment Share on other sites More sharing options...
YHSublime December 10, 2018 Share December 10, 2018 It's not just Zoanthids. This is a debate that has been had countless times on every forum, from my experience it's: Metal Halides T5's LED's The trade off is efficiency, with LED's being the most cost effective, least amount of heat output, and longest life. I ran metal halides once, and the heat vs. growth wasn't worth it in my small space. Here are some of the discussions I found on WAMAS with a quick google search on Metal Halides Vs. LED's. Radions VS. Metal Halides LED VS. Metal Halides Geismann VS. Hamilton VS. LEDS Link to comment Share on other sites More sharing options...
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