Black Sun Coral help

[Matt711]

I have a piece of black sun coral that has developed a strange slime on a few of its branches. The ends of the branches are covered in a ball of the slime. The slime itself is thick and white, but slightly translucent. I recently had a large ammonia spike and a slight ph swing in the tank due to a piece of live rock I added that for some unknown reason "poisoned" the water. Since then the rock has been removed, and the water parameters have stabilized and are almost back to normal. Does anyone have any ideas on how I can save the coral or what the slime may be caused by specifically?

ph: 8.2
ammonia: 1ppm
nitrite: 0
nitrate: 40ppm
phosphate: 0
calcium: 400ppm

 

[The_Browns]

Your ammonia should be 0ppm, nitrate should be < 30ppm

Did you let your tank fully cycle? To me it does not look that way since you have ammonia. Once a tank cycles and you maintain it you hsould never have an ammonia problem.