Ultimate Reef Test Unit???????????

[Scavenger]

Well not too long ago my star polyp colony decided to divorce. Seems they had "Irreconcilable" differences. Any hoo... One colony, for any reasons just retracts and hides. Just like that and no notice. I do a water change. This makes the colony happy and they extract. I'm just wondering if anyone has had similar experiences in their reef.

[BMW Rider]

I've got something like that going on with my star polyp and my Kenya tree corals. They perk up periodically then retract again. I did a 25 gallon water change yesterday, and today they seemed better. All water tests are excellent, even before the change, though my calcium is a little low at 360 ppm. I'm wondering if they don't like the lighting or current, and have been moving them to see if they do better.

[Scavenger]

Ya BMW, thats the weird thing, I can't figure out what they like. All my tests (before and after) are almost identical readings.