Came back from a short vacation and my trachy is not looking good.
I cleaned the cyano off of it and used a turkey baster to clean the sandbed and rocks.
I dipped it in Seachem's reef dip and examined it more closely.
It has skeleton showing on one side and a little bit on one of the high parts. It is also receding around the whole base. I have noticed it hasn't been looking great over the past 2 to 3 weeks but I wasn't sure what the problem was exactly.
I'm not sure if the cyano grew on the coral and killed off that part, or if it died and then the cyano grew on it. Either way, it wasn't like that when I left on Wednesday morning.
I had noticed an orange sponge growing on the bottom of the coral that I thought was harmless but after today I'm not as sure. But after closer inspection it seems like the dead parts aren't too close to the sponge so I'm not convinced that is the issue.
I am also worried it might not be getting enough light at the bottom of my tank. The receding parts are mostly on the left most side (away from the light) so that would make sense. But it is also partially shaded by an overhang so I would think the back would be showing issues too?
I moved it over to the right side of the tank where there is less shading and cyano growth and I'll see how it does tomorrow. I think I'm going to increase my lights another 5% as well.
Lastly, I tested my water. I have been struggling with high nutrients, and recently added more phosguard to get my phosphates down. They were at 0.36 and I added more phosguard on Tuesday, which brought it down to 0.16 today. I'm hoping that wasn't too quick of a change, but considerering that level is still relatively high in doubt that's the issue.
I also double checked my salinity with a friend's refractometer (1.026) so at least I know that's not the issue.
I really hope it recovers, it's one of my favorite corals and I hope I didn't wait too long to take action.