wait time

I have a duncan that has done pretty well until recently. To note, I also recently moved it to my new tank. But at first it was doing well in the new tank, about 3 weeks being in the new tank it retracted and for the most part has stayed that way from what I have seen of it. 5 days ago I also changed lighting. So how long do I give it before I try out a new location for it. Similarly, for other corals how long should I give them before deciding that they are accustomed to the lighting and that a spot simply is not very good for them.
Another note, the Duncans are in a spot where they are getting pretty good water flow but from what I have read they need good flow.
My nitrates are not 0, but not far off. All other corals are looking good at this point.

 

What are your Ca/Alk values and SG?

At what intensity are you running the lights?

I would not given the Duncan much longer to come around 5 days closed seem like a negative trend. If mine closes for any reason I know something is up.

Duncans for me have always been the first coral to look stressed if anything at all is wrong with my water chemistry.

 

I would agree, post your parameters. My Duncan just like corallines is always the first to let me know I have issues!

 

pH = 8.2, amonia = 0, nitrite = 0, nitrate = 10ppm, salinity 1.025, temperature 79.3
I just did a water change yesterday. I don't understand why my nitrates are this high. I only have 3 fish (clown, chromis, goby), lots of snails, and lots of very small hermits. I bought one of those floating devices that contain the food and my fish are eating every bite of pellet food within 45 seconds at most. I just don't get it.
My duncans and trumpets are not looking pretty bad, but my zoas, feather duster, mushrooms, frogspawn are all looking great.

 

Need calcium, alk and magnesium level please.

A nitrate level of 10 is absolutely nothing to worry about, I would not even bat an eye at that number.

 

So the when do you begin to worry about nitrates?

 

I see you have a new led light. It might be to intense for them. That would be my guess. I would only give it a day or two max to change coral locations. Hope you've had success, I know it's been 5 days since your last post.

 

Above 20, unless you are running a sps dominated ultra low nutrient system and or having algae issue.

Some of my nicest tanks typically ran around 10-20 on the nitrates.

I am one of those odd ball old school reefers that does not believe phosphates nor nitrates have to be an absolute 0 24/7. If algae issue sets in, or changes in coloration then yes address any nitrate or phosphate issue.

In newer systems definitely test for them. I have not tested for them in years.