Greetings with a Zoa question.

[Anthony Morie]

Hello everyone! First of all thanks for the great information. I have a 4 month old 45 gallon shallow reef tank with a 20 gallon sump refugium. I have recently added 4 blue leg hermits and a small colony of zoanthids. I did a temperature acclimation for the Zoas ( about 20 minutes) then added them to the tank. They haven’t opened yet and it’s been two weeks. My parameters as of this morning are as follows:
Temp: 79
Ph: 8.0 -8.2
Ammonia, nitrite: 0
Nitrate: 10-20ppm
I’ve read countless threads on this issue but just haven’t found anything that helps. I do weekly water changes and use reef crystals. Could it be that I don’t have any fish? I’ve read that Zoas like “dirtier” water.

 

[Uncle99]

Zoos are one of the hardiest and fast spreading corals.
What's the light....maybe too strong and they are hiding...
Nitrate is a bit high....zero better goal....two weeks is a little long for opening but not out of possibilities.
What about phosphate...is that zero?

 

[Uncle99]

Btw....dirty water is just dirt in water....
While some corals may tolerate it.....none "like" it.
Keep all parameters at NSW levels

 

[ssagar]

:Could it be that I don’t have any fish? I’ve read that Zoas like “dirtier” water.

I have my tank with zoas from last 3 months, most if them opened within an hour after them were introduced,a few took 3-4 days. 2 week IMO is too long.

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