Zoa issues

[Fishguy88]

Something is up with my Zoas. I'm pretty new to this. I have a frag of 2 sunny d Zoas. The larger one is losing its yellow ring and it's turning white. There is also a big purple blotch on it. The smaller one has shrunk a little bit and is almost completely purple now. Only a tiny bit of green and no yellow. Anybody have any idea what is happening? I also have another frag of blue and red Zoas. Parts of their red skirts thinned out and turned a darker color, and now they are much smaller.

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[A. Grandis]

Oh boy...
You'll need to let us know everything you remember about your system, including lights, water chemistry, etc..
Please read other posts to write your details.

Grandis.

 

[Fishguy88]

Hey sorry about that. Tank is 29 gallons. Light is a MarsAqua 165 watt. Running a gfo reactor and skimmer. Calcium is at 440, alk is at 8dKh, nitrate 5ppm, and salinity is at 1.025.


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[A. Grandis]

Hey sorry about that. Tank is 29 gallons. Light is a MarsAqua 165 watt. Running a gfo reactor and skimmer. Calcium is at 440, alk is at 8dKh, nitrate 5ppm, and salinity is at 1.025.


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Try to remove the GFO and do a 10 % water change for now and see what happens..
Could be light deficiency too.

Grandis.

 

[supscribe]

I agree with the water change and check all your parameters and may and fresh water dip. I've done the fresh water dip in my Zoa and watches nudibranches fall off