Yumas disolving help.

[juice_1080]

I purchased a rock with a load of yumas on it about a week ago and one by one they are all dissolving. First the smaller ones are gone and now one of the bigger ones has a brownish see through blob hanging out of its mouth and it fell off the rock. 2 of the other big ones are peeling off the rock as well.
I did notice where the one fell that the side that is kindof in a shadow looks alot more vibrant and healthy. Do you think that I possibly have them under too much light? They are about 1/2 way up in my 29g w/
2x27w 10,000k T-8
1x27w Actinic T-8
1x18w 10,000k T-5NO
1x18w Actinic T-5NO
Tank Readings:
1.026 w/Refractometer
Amm: 0ppm
NO3: 0-5ppm
NO2: 0ppm
Calc: 420ppm
Phos: 0ppm
KH: 161ppm
I can't find my cam for some pics but I am looking for it.
Know what might be wrong?

 

[turtlegirl933]

Your sanintiy is alittle high.

 

[puffer32]

Your salinity is fine, don't mess with it. Put the yumas in alittle less light and see if that helps, yumas like more lighting then other shrooms, but were they under low lighting when you got them? Some times getting to much light to quickly can shock them.

 

[juice_1080]

1 point shouldn't make them die though should it? All the rest of my corals are perfectly healthy and growing. I thought you wanted 1.025-6 for a reef tank.

 

[juice_1080]

They came from a 8" tall coral tank at the LFS with a MH (don't know the watts) about 2ft above the water level. They came in the day I bought them. I will try putting them on the bottom. Its just such a big rock that I didn't have anywhere else to put it. Now that I get to catch all my fish because of ich I can move it somewhere else. Thanks for the help....

 

[hypertek99]

You salinity is fine. Wild yumas don't have a great success rate in our home aquariums. Over time they will melt away. If you want yumas try to buy aquacultured ones. Since you said it was a big rock of it then it came from the wild.