RFA will adjust to appropriate flow and lighting to what they see fit. I have a ton of them and they are scattered in different regions of my tank. Some are high up to the light, some are in high to low flow, some are literally in dark crevasses. I would say as long as you have a decent light that can sustain coral growth you’ll be fine. I literally bought and forgot mine because they often move around to where they want and some of mine are so hidden I’ll see them sometimes and be like “ope forgot about you.”. They’re incredibly hardy, colorful, and fun for any tank.
