Yes! I have. When I first converted to bare bottom (black starboard) I did it because I kept experiencing weird stuff killing my corals. I knew we had a ton of bristle worms and a weird snail that looked like it had a toenail on its back, and just crazy crap in my sand and LR. First we pulled the sand over 2 weeks, and then we pulled the LR over 2 more weeks. I didn't worry about this because I have a small aqua clear 150 loaded with purigen packet for chemical, and Eheim Substrat for bio filtration. I NEVER saw any parameter swing at all.
After all was done, we still saw occasional bristle worms that we caught with a trap, and now all seems well. I only dose aragamilk twice a week, calcium stays at 440-460, 6 stage RO/DI for coloramines, now 0 TDS( used tap for 6 months before), Reef octopus BH1000, 2 koralia 750's, reef breeders photon 24, all on a 40 breeder (all softies). Also, my corals seem to do better at about 20 on the Nitrates ..... LOVING BARE BOTTOM!!!
Stock: green welso brain, green favia, 8 head branching hammer, blue Xenia, shrooms, frogspawn, gsp ( trying to cover bottom with the gap growth), coco worm, 7 inch deresa clam, 6 inch crocea clam, and anthelia. Coralline is coming back as well BIG TIME!!!