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View Full Version : 90% of my Zoa colony won't open..been a week


goldnlovr
05/16/2017, 08:32 PM
Water parameters are fine. They are in low current and medium light. It has been almost 2 weeks. Do I consider them dead? or do I give them more time?

activecactus
05/16/2017, 09:40 PM
I would clean and dip them and give them more flow. Sounds like something is irritating them. Maybe fish or inverts?

sde1500
05/17/2017, 01:42 PM
You'd consider them dead when they've all melted away completely. In the meantime, what do you define as "fine" parameters? What are your number, as tested, today? Also, could be a pest, I agree, dip them in something like revive, see if anything comes off.

jeffmerrill
06/03/2017, 02:57 PM
Don't give up on them. I would dip and relocate within the tank if possible.

tacschulz
06/04/2017, 02:33 PM
I had the same problem and found out my refractometer wasn't calibrated correctly and my salinity was off. I corrected that and they opened up.

MuShu
06/05/2017, 07:12 AM
Do you have any asterina starfish? Sometimes they will eat zoas, which will cause them to close.

Razorback reef
06/11/2017, 01:58 AM
I had the same problem and found out my refractometer wasn't calibrated correctly and my salinity was off. I corrected that and they opened up.

I've had that happen before. If his salinity is off then it could be the culprit..