Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I am new to this hobby also, how can you tell it won’t make it? You are looking at the white skeletal structure and how it meets the flesh? I am thinking it should be white from frag disk till the flesh?I agree with Gumbie on his recommendations. However, that frogspawn isn't going to make it. Was it like that when you purchased it from the LFS?
Also, two months is still a very new tank. The stability isn't there yet.
What kind of light do you have?
I got a new hammer frag online and since they shipped it overnight, the polyps were pretty much fully open in the bag when it arrived.I have a 20 gallon aio innovated marine tank I have a wave maker I could move to get it more flow it is not controllable tho
Here after couple days lfs from my town coral is doing betterI got a new hammer frag online and since they shipped it overnight, the polyps were pretty much fully open in the bag when it arrived.I have a 20 gallon aio innovated marine tank I have a wave maker I could move to get it more flow it is not controllable tho
Did your frag fully open at the LFS / before you place it into the tank?
I suspect that it has a shock from either accimation or is just getting used to the tank parameters.
Also if you got any hermit crabs, they love bothering corals, espically new ones.

Your PH being 7.5 is way too low. At that level, corals will start dying. I would get an airstone and air pump or if you have a skimmer with an air intake line, add a CO2 scrubber to it to help oxygenate the tank more. I personally am not a fan of chemical ph buffers because they can swing numbers too fast, throw other parameters out of whack, and potentially do more harm than good. At this point, its sad to say but you will probably lose that coral. Once they get that bad off with only the 1 polyp head, I haven't seen them bounce back. Definitely bring the ph up and try to get your alk closer to 10 dkh to help with ph stability. calcium is a little secondary based on your parameters but ideally it should be 420-450 or a little higher if you run more lps/sps in your tank.