My Zoa is constantly closed

[duff0712]

First of all if I am posting this in the wrong place I am sorry! Thought this was the best place since it is Zoa related (they could be palys though, I'm still learning).

37g tank
Two months old. Currently going through the cyano cycle I believe
Params:
Waste- 0/0/0
PH- 7.9~ (I have only been able to do water test with samples after the lights have been off for the night)
KH- 8.5-9
Salinity- 1.025
Calcium- 435
Mag- 1300
Phosphate- .02~ as far as I can tell

As far as I know Zoas like the water to be a little bit "messier" so I dose home cultured phytoplankton twice a day. Once when lights are at peak and once when lights turn off (second time is mainly for acans). Other than that I am feeding my fish twice daily so there should be enough food for them

I have three different kinds of Zoas in my tank. The trouble Zoa has four polyps and only one opens. The other two Zoas are doing great, one is up a little higher and one on the same horizontal plane.

I got the Zoa, that is staying closed, about 15 days ago. All the polyps were opening then so I don't know what is going on. I don't think I'm burning them.

I have a couple pictures of them and noticed some white things on the Zoas. I was hoping for an id and if they were possibly the culprit? If not what else could it possibly be?

Troubles Zoa (picture was taken after lights were off)

Here is one of my fire/ice to compare. Seems to have a couple of the same things on it, but all of the polyps open daily. I actually have several new polyps

Any help is much appreciated!

 

[Virtualbasil]

could be too much light or not enough light

 

[Tahoe61]

The small white items on the stalk are Spirorbid worms, they are benign.

You did not post lighting? If LED what are you running them at percentage and time wise?

It's been my experience that Zoanthids do not like Cyano. Your tank is young so I expect a cyano bloom and issue. For awhile I would stop feeding phyto twice a day until the cyano completely clears. Your zonathids will grow and reproduce without the phyto, wait until the tank becomes more established before resuming supplemental feedings.

If the issue becomes more noticeable, then dip the zoanthids in Lugols dilution or a popular coral dip.

 

[duff0712]

could be too much light or not enough light

You did not post lighting? If LED what are you running them at percentage and time wise?

I have a FluvalSea LED and T5HO. The led is on for about 4 hours and the t5 is on for about 8.5 hours. I plan to upgrade my led to the FluvalSea 2.0 since it has more blue lights. I use the current FluvalSea as whites for the most part. The t5s are an ATI corals plus and blue plus.

It's been my experience that Zoanthids do not like Cyano. Your tank is young so I expect a cyano bloom and issue. For awhile I would stop feeding phyto twice a day until the cyano completely clears. Your zonathids will grow and reproduce without the phyto, wait until the tank becomes more established before resuming supplemental feedings.

It could be possible as I was cleaning the side glass a chunk of cyano landed on the Zoa. Since your saying to stop feeding phyto, I would assume the cyano would feed off it? If so I'll stop dosing phyto until the cyano has run its course.

 

[cloak]

It looks like you might have some Spionid worms in between the polyps. These have been known to irritate zoanthids on occasion.

http://www.coralpedia.com/index.php?module=Gallery2&g2_itemId=384