Problem with corals

[daniella3d]

also you might want to test for copper. I recently put Kent carbon in my tank and all my xenias (3 varieties) melted in few hours. It's not the carbon because I was using Seachem Matrix carbon before and I had my xenias thriving for the past 2 years until my tank was contaminated by copper.

Problem is, there might still be a lethal level of copper in your tank and that would be lower than what the commercial tests can detect. Anyway it is a good start to test for that anyway.

[subman]

I know it was mentioned before but i lost a massive colony of xenia and colts just as you described 'melting away' in a very short period of time. Mine was caused by a massive increase of phosphates because of a new container's I started using for ro and salt mixing. I didn't clean them properly before using and poof they dissapeared in less than week.

[1bigstud]

Lots of great suggestions,
Last I checked my nitrates were fine,
Never tested for copper
if I do have copper in my tank how do I get rid of it?
all my fish, hermit crab,mushroom and baby star seem to be doing great.
I think I will take a water sample to the lfs and test for everything possible.
Also I will move forward with the water changes every few days.

[daniella3d]

I had copper contaminate my tank recently and kill half of my corals. All xenia melted in few hours and all my snails were just fine. The level of copper needed to kill xenia seem to be much lower than what is required to kill snails.

If it is copper, then use Seachem Cuprasorb to remove it and do water changes.

Anyway it is something to test.

Originally Posted by 1bigstud

Lots of great suggestions,
Last I checked my nitrates were fine,
Never tested for copper
if I do have copper in my tank how do I get rid of it?
all my fish, hermit crab,mushroom and baby star seem to be doing great.
I think I will take a water sample to the lfs and test for everything possible.
Also I will move forward with the water changes every few days.

[1bigstud]

I use an aquarium pharmeceuticals r/o unit. I keep a garbage can full of r/o water. The stuff usually sits for a few days before being used to top up, or water changes.

[1bigstud]

Ok went to the lfs.
Tested for
Nitrate
Nitrite
Ammonia
Copper
Phosphate
Calcium
Ph.
Ph and calcium levels where bang on.
No ammonia, nitrates or copper in the tank.
Slight levels of nitrite and phosphate.
Salinity was 1.027 tested with a refractometer.
Any thoughts, could it be the salinity?

[reefwars]

Originally Posted by 1bigstud

Ok went to the lfs.
Tested for
Nitrate
Nitrite
Ammonia
Copper
Phosphate
Calcium
Ph.
Ph and calcium levels where bang on.
No ammonia, nitrates or copper in the tank.
Slight levels of nitrite and phosphate.
Salinity was 1.027 tested with a refractometer.
Any thoughts, could it be the salinity?

def wold be better to have the salinity lower i prefer 23-25 but i doubt it was that that killed the corals .get the phosphate downs and youll see better coulors and im not sure if theres and algae in your tank but if so it will kill that too.

do you run carbon??