Mobile Bay Reef Keepers

I have had this leather tree coral in my tank for 3+ years and up until a week ago it has been very happy with good growth.

Aquarium:
Size-55 gal
Temp-76-78 F
Salinity- .0235-.024
Lighting-Coralife Compact 10,000k (New bulbs)

Here's what i've changed in the last week:
Added some inverts-scarlets, turbos, emeralds and 1 brittle starfish.
Added 1 orangespot goby.
Added 1 zenia coral.

I also covered 3/4 of the aquarium top with glass because the orange spot gobt can be a jumper. All my other corals appear to be fine.

Any ideas as to what could be wrong and is there a cure?

Thanks for any help,
Darren

I guess pics were too large.

Tree Coral

What elements are you adding to the tank? How often are water changes done? Lighting? Lighting schedule? Its winter time is the temp stable throughout the night?

Water temp is stable. Calcium buffer is added weekly.

My 4' Coralife compact 10,000k 50/50 bulbs are 4 weeks old.
I can't figure it out, he's been fine for over 3.5 years up until my additions that I listed on my first post.

I did lower one of my head jets to adjust the flow for a zenia addition. But uther than that, all is still the same.

The orange spot goby is kicking up some sand as he's sifting. Maybe this could be an irritant?

Oh, and water changes (RODI)are done every 4 weeks or so...

maybe the glass you put over the top cut down on the amount of light it gets. Try removing it and see what happens.

I think I figured it out.

I had a head jet about one inch above my sand behind my rock. The orange spot goby I recently added was causing some sand to go through the jet when he was sifting around it. I think it was irritating my tree coral. Since I raised the jet about six inches, there is far less sand floating around in the water and my coral looks a lot better.

Cool, its funny the smallest things change everything. My spagetti coral was all shrived mid tank under halides, I moved it to the bottom and its fully expanded again. I also had palays that were shrived under direct light, i moved them to a shaded area and they are doing great.

Yeah, i hear you. Thanks for the reply.

Do you have a decent LFS over in Mobile?

Yes, Progressive marine is cool. Just make sure you call before you go there because they are usually only open between 2-8pm. If you come this way, let me know I have some purple zenia I can trade or give away if you need some.