Leather branched coral exuding brown mucas all over my tank

[DougSmith]

My tank has been set up as a fish only w/live rock for about a year. 4 months ago I started adding soft coral frags. All are doing fine but one. My leather coral is messing up my tank with <mucas? long strands of brown algae looking stuff. WAG>. Does this mean that this coral is under some kind of stress? It has been in my tank a couple of months now, and has just started this behaviour.

I have the following:

Equipment:

• 20 gallon Nano glass tank.
• GLO hood with 1 HO T5 actinic Marine-glo and 1 HO T5 Power-glo. Both 24w 4 months old. Lights on 12 hours daily.
• Temp 80f
• salinity 1.024
• My reef test kit, and my LFS both claim my water parms to be what they should be.
• 20 lbs argonite sand bed.
• 20 lbs live rock
• Protein skimmer
• E-Heim cannister with carbon and a Poly-Filter. Causes a good rate of flow also.

Fish:

• 1 blue damsel (Chromie? )
• 1 lawnmower blennie
• 1 Pajama Cardinal
• 2 small Tomato Clowns

Corals:

• Several Mushroom polyp colonies (have divided twice so far).
• 1 Bubble tip Anemony (now 2 recently divided).
• 1 Brown Button colony.
• 1 Colt.
• 1 Trumpet w/3 stalks.
• 1 Green star.
• 2 Zoanthids.
• 1 messy Leather with 2 stalks and many branches.

Clean up crew:

• 5 Hermit crabs.
• 1 Cleaner Shrimp ( has molted at least 3 times)
• 1 small crab?

[kevinpo]

Hello,
Soft corals can shed an outside layer of tissue at regular intervals. Make sure the coral receives regular moderate water flow. An on/off pulse type or random flow is best.

HTH,
Kevin