One reason they may retract/inflate like that is because there is something disagreeable in the water column; like an irritant. It often happens when a hand is stuck in the tank, or sometimes food can cause it, or maybe something released from another coral or critter. The coral seems to be "holding its breath" and I've often wondered if maybe fish urination could maybe cause that too. Anyway, it is common and usually a temporary behavior. Also, they seem to do this more often when they are new so it is possible that there is some type of osmoregulation taking place or something to that effect.
On the downside, your coral appears to be quite bleached. When they are bleached, they will not extend well.
Too strong of water flow will keep them more retracted too (and even completely retracted).
Quote:
|
Originally Posted by JennM
I can't see how 'botching acclimation' would have done anything - there isn't much acclimation to be done -float it for temp, and tank it. In general corals aren't as sensitive to acclimation as many would have you believe.Jenn
|
Goniopora can't be generalized with other corals. They are extremely sensitive to their environment and any changes made to it. Improper handling and acclimation is at least half the reason the common species die so often and so quickly in captivity.
You're not at all! Now I'm going to start testing the ALK along with the salinity. Thanx for the idea Butch!
