ok, question 1. one of my three zoa colonies has not been opening up lately, no apparent reason seen. nothing touching them, growing on them, etc…
question 2. one of my acros died from being constantly knocked over by turbos, but one other one seems to be turning from brown, to a yellow color? is it too high and getting bleached, is it dying???..
parameters are good, nitrates little high before water change. but all else good??
[quote=“bigbollos, post:1, topic:1287”]
parameters are good[/quote]
What parameters and what is good?
[quote=“bigbollos, post:1, topic:1287”]
nitrates little high before water change. but all else good??[/quote]
Define a “little high” in parts per million(ppm) and what test kit are you using?
Also what kind of flow do you have in the tank? Is it possible the one coral is setting in a “dead spot” where the flow is lower?
As far as “browning out” is happens often with SPS. As long as your lighting and flow are decent and your Ca, Mg, and Alk are all in a line as well as your Nitrogen cycle at controlable levels they should come around in time. How mature is your tank. What other corals do you have in the tank and how are they doing?
I have had yellow colored SPS come back. Once they get algae covered or turn all white they are usually done.
other corals are good. torch, hammer, shrooms, polys, other zoas, anemone is closed up though.
as far as parameters, ammonia 0, nitrites 0, nitrites 20ppm, cal and alk are good.
acro was originally brownish with purple tips, then tips lost purple color and turned brown, now starting to turn yellow?
How long have the acros been in your tank? In your last post, I think you meant that the nitrates are 20ppm. Have you done anything different recently? When you made water change, did you use the same salt mix? And what kind of lighting are you using? Sorry for all the ?'s, just trying to get more info to be helpful.
i used a different salt mix this time, but acro was discolored before change. i am running 250w MH and 4 39w acitinics.
nitrates are high for most SPS corals. I have had a few acros that did well in higher nitrates (20ppm) but most do not.
I agree with a1amap that nitrates are too high. Try doing another water change.
What kind of anenome? My sebae closes up tight every once in a while prolly gettin touched by a worm near it’s foot. My RBTA close up randomly (most likely from food)