We have tons of Kenya, and the fact that you've got a happy branch is a positive sign. The Kenya is just taking it's sweet time acclimating to your tank. Give it time, it will open up and grow like crazy. Then it will shed little pieces of itself and you'll have babies all over your tank! They make for a good trading coral. You'll have so much Kenya, you won't know what to do with it. We actually weed it out at times since the babies just fall off the mother colony, get blown around a bit and then attach themselves to the place they want to be. Am I correct in assuming it's mounted to a rock? Kenya is pretty when it's opened up and happy, but they can be a temperamental coral, doing exactly what you're describing at any time, or not getting along with it's coral neighbor. I had my candy cane coral next to it, and both of them were hopping mad and having a toxin war. Just move on of the coral to a different location so they don't fight! We have 4 of them that grouped themselves on a good sized rock, and once in a while you'll maybe see one in the clump that didn't open that day. Moody little buggers, but also very hardy. They add nice color, and their branches sway with the flow of your powerheads. Place it about mid-level in your tank, and in an area with good flow. This coral is a good indicator of illness or water problems. You said your water tests out fine. If other things in the tank looked ill, I'd re-test the tank water, but that doesn't seem to be the issue from your explanation. Patience may be all that's needed
As far as your mushroom goes, it's possible that he got a hold of some good food in your water colony. They will close up like that if they're feeding on something. If the mushroom doesn't like it's location, it will pick up and move to a spot it likes better. I don't think you have anything to worry about there either.
I'm sure other members will pop in and share their thoughts on this also. Good luck, and enjoy your Kenya when he feels at home....and that won't be long!
.....Angel :angel2: