Hello everyone, I recently bought a large duncan coral piece that is now having trouble in my tank. My tank has been running for about 4 months now, soon to hit 5. I only bought this piece a couple days ago. I put it in my tank the night I bought it after coral dipping in seachem coral...

As some of you know I had an ammonia spike a little while ago and I'm new to the reefing hobby. I have been nutrient free for over a week, maybe 2 weeks..can't remember (I sound like I'm talking in an AA meeting haha). Anyways. My duncan has been open everyday since the ammonia problem went...

ok so i have a 40 gallon breeder thats been cycled for about a month or so within the past week my 2 coral i have 1 zoa colony and 1 duncan have been closed or barely open i tested my water today and everything is 0 PH was a lil low at 7.8 i think i may have a phosphate probem i have a decent...

Hi reef tank, I got a new duncan coral and it's been in the tank for a couple of hours. The polyps became open for a while but then closed when the lights went out. Is this normal or should I be worried? Thanks :)

I had a issue w/algae so I kept my lights off for two days. When I put my lights back on my Duncan tentacles disappeared. It's been three days since and the heads are still empty. I tried to move it up in the tank closer to the lights and more flow. Is this the right thing to do?? if not what...