cmbspd

Not to bash you, but what are you doing with coral after only being setup for 4 days?

Was this substance reddish brown and stringy? If so it was most likely zooxanthellae; which is the symbiotic algae that gives the coral its energy. This can happen due to stress and sometimes from over light exposure. This is a normal phenomena. What is your photo period right now?

Understood - I got A LOT of beginner type corals as hitchhikers on the liverock that I bought from a local reefer's teardown - see my previous blog entry for details. They are in a tank with most of the liverock directly transferred from the previous tank and I'm monitoring daily.

Originally Posted by MeVsTheWorld

Not to bash you, but what are you doing with coral after only being setup for 4 days?

No, it was pure white and mostly receeded soon after the post. This morning I see that the coral looks like it might be trying to move? Rather than laying flat, the disk is now raised up on a stalk that is a little less than a quarter inch. This coral is near the bottom of my tank and my photoperiod is 11.5 hrs (MH and acitinic togther). These corals came with the liverock I bought and were previously in a smaller, shallower tank with T5 bulbs. If you read my previous post then you'll see that none of my water parameters are perfect but they aren't horrible either.

Originally Posted by MMoore0324

Was this substance reddish brown and stringy? If so it was most likely zooxanthellae; which is the symbiotic algae that gives the coral its energy. This can happen due to stress and sometimes from over light exposure. This is a normal phenomena. What is your photo period right now?

Here is a picture of the coral this morning. It is on the right side of the photo and is a different species than the mushrooms on the left because it has a bumpier texture (Ricordia-like). It was lying flat prior to the white guts popping out.

Just checking, didn't want you to start off on the wrong foot.... MMoore0324 is right, I've seen some of mine do this before.

Mushroom corals will do that anytime they're unhappy. Touch them inadvertantly, pffft, move their rock to try and reaquascape, pfft. It's more of a defensive action than a waste removal thing... Good on you for noticing the small changes that take place in your tank, though.