My zoas are closing...please help

[jeweldamsel]

Most of my corals are zoas and they are multiplying. I have been adding Lugol's solution according to the instructions. Lately I noticed some colonies start closing up. I wonder if I need to add more iodine and/or other additives. My calcium and alkalinity are good as well.

 

[dc_909]

Iodine is something that I rarely add and I really haven't seen a benefit from doing so. I would stop adding that for now.

 

[jeweldamsel]

dc_909,

How do you keep your zoa healthy? What would you suggest me to do?

 

[sdaousa]

Lugos iodine is really bad. One time I dosed it and all my xenia died. Also the zoa was closed. I did a lot water change and my zoa is doing ok now. I'll never use the Lugos Iodine again.

 

[coralfragger101]

Iodine can be LETHAL. You should not use idodine, or anything other supplement for that matter, unless you are testing for that ion before and after dosages.

 

[jeweldamsel]

Do you all add any additive to keep the zoas happy?

 

[Eklikewhoa]

I don't dose anything and a zoa colony I saved from a LFS is opening up and looking wonderful! I do weekly water changes in my tank and so far that is all that is needed to keep them gaining their health back.

I dose Phyto/Zooplankton probably once a week.

 

[jeweldamsel]

Changing water will add the essential chemicals to the tank. I have a lot of soft corals, unless I change a lot of water often, otherwise, I will have to add extra additive.

 

[Aearon]

Adding extra additive is not necessary when the tank have water replacement about 25% weekly.

 

[Idlemind]

Just make sure your water parameters are good and try moving them closer or further away from the lighting.. Had a similar problem about 6 months ago, now they are all doing great!